Grandstream Networks, Inc.

Grandstream Networks, Inc.
Grandstream Networks, Inc.
HT802 Analog Telephone Adaptor
Administration Guide
COPYRIGHT
©2016 Grandstream Networks, Inc. http://www.grandstream.com
All rights reserved. Information in this document is subject to change without notice. Reproduction or
transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without
the express written permission of Grandstream Networks, Inc. is not permitted.
The latest electronic version of this user manual is available for download here:
http://www.grandstream.com/support
Grandstream is a registered trademark and Grandstream logo is trademark of Grandstream Networks, Inc.
in the United States, Europe and other countries.
CAUTION
Changes or modifications to this product not expressly approved by Grandstream, or operation of this
product in any way other than as detailed by this User Manual, could void your manufacturer warranty.
WARNING
Please do not use a different power adaptor with your devices as it may cause damage to the products
and void the manufacturer warranty.
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GNU GPL INFORMATION
HT802 firmware contains third-party software licensed under the GNU General Public License (GPL).
Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public
License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu-general-public-license/gnu-gpl-information-download
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Table of Content
DOCUMENT PURPOSE ................................................................................................. 6
CHANGE LOG ................................................................................................................ 7
Firmware Version 1.0.2.5 ....................................................................................................................... 7
Firmware Version 1.0.2.3 ....................................................................................................................... 7
Firmware Version 1.0.1.9 ....................................................................................................................... 7
GUI INTERFACE EXAMPLES ........................................................................................ 8
WELCOME ..................................................................................................................... 9
PRODUCT OVERVIEW ................................................................................................ 10
Feature Highlights ................................................................................................................................ 10
HT802 Technical Specifications ........................................................................................................... 10
GETTING STARTED ..................................................................................................... 12
Equipment Packaging .......................................................................................................................... 12
HT802 Ports Description ...................................................................................................................... 12
Connecting HT802 ............................................................................................................................... 13
HT802 LEDs Pattern ............................................................................................................................ 14
CONFIGURATION GUIDE ............................................................................................ 15
Obtain HT802 IP Address via Connected Analogue Phone ................................................................ 15
Understanding HT802 Interactive Voice Prompt Response Menu ...................................................... 15
Configuration via Web Browser ........................................................................................................... 17
Accessing the Web UI .................................................................................................................. 17
Web UI Access Level Management .............................................................................................. 17
Saving the Configuration Changes ............................................................................................... 18
Changing Admin Level Password ................................................................................................. 18
Changing User Level Password ................................................................................................... 18
Changing HTTP Web Port ............................................................................................................ 18
Web Configuration Pages Definitions .................................................................................................. 19
Status Page Definitions ................................................................................................................ 19
Basic Settings Page Definitions .................................................................................................... 20
Advanced Settings Page Definitions ............................................................................................ 22
FXS Port (1,2) Pages Definitions .................................................................................................. 27
NAT Settings ........................................................................................................................................ 38
DTMF Methods .................................................................................................................................... 38
Preferred Vocoder (Codec) .................................................................................................................. 38
Configuring HT802 Through Voice Prompts ........................................................................................ 39
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Register a SIP Account ........................................................................................................................ 39
Call Features ........................................................................................................................................ 41
Rebooting HT802 from Remote ........................................................................................................... 42
UPGRADING AND PROVISIONING ............................................................................ 43
Firmware Upgrade procedure .............................................................................................................. 43
Upgrading via Local Directory: ............................................................................................................. 44
Upgrading via Local TFTP/HTTP Servers ........................................................................................... 44
Firmware and Configuration File Prefix and Postfix ............................................................................ 44
Managing Firmware and Configuration File Download ........................................................................ 45
Configuration File Download ................................................................................................................ 45
RESTORE FACTORY DEFAULT SETTINGS ............................................................... 46
Using the Reset Button ........................................................................................................................ 46
Using the IVR Command ..................................................................................................................... 46
Reset from Web Interface (Reset Type) .............................................................................................. 47
EXPERIENCING HT802 ............................................................................................... 48
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Table of Tables
Table 1: HT802 Features in a Glance ......................................................................................................... 10
Table 2: HT802 Technical Specifications .................................................................................................... 10
Table 3: Definition of the HT802 Connectors .............................................................................................. 13
Table 4: HT802 LEDs Pattern Description .................................................................................................. 14
Table 5: Voice Prompt Menu ....................................................................................................................... 15
Table 6: Status Page Definitions ................................................................................................................. 19
Table 7: Basic Settings Page ...................................................................................................................... 20
Table 8: Advanced Settings ......................................................................................................................... 22
Table 9: FXS Port (1,2)................................................................................................................................ 27
Table 10: HT802 Call Features ................................................................................................................... 41
Table of Figures
Figure 1: HT802 Package Contents ............................................................................................................ 12
Figure 2: HT802 Back Panel ....................................................................................................................... 12
Figure 3: Connecting the HT802 ................................................................................................................. 13
Figure 4: HT802 LEDs Pattern .................................................................................................................... 14
Figure 5: Admin Level Password ................................................................................................................ 18
Figure 6: User Level Password ................................................................................................................... 18
Figure 7: Web HTTP Port ............................................................................................................................ 19
Figure 8: SIP Accounts Settings.................................................................................................................. 40
Figure 9: Account Status ............................................................................................................................. 41
Figure 10: Firmware Upgrade Page ............................................................................................................ 43
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DOCUMENT PURPOSE
This document describes the basic concept and tasks necessary to use and configure your HT802. And it
covers the topic of connecting and configuring the HT802, making basic operations and the call features.
Please visit http://www.grandstream.com/support to download the latest “HT802 User Guide”.
This guide covers following topics:

Product overview

Getting started

Configuration guide

Upgrade and provisioning

Restore factory default settings
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CHANGE LOG
This section documents significant changes from previous versions of administration guide for HT802. Only
major new features or major document updates are listed here. Minor updates for corrections or editing are
not documented here.
Firmware Version 1.0.2.5

Changed OPUS Payload Type default value to 123 to match other GS products. [OPUS Payload Type]
Firmware Version 1.0.2.3

Added a re-enter box to confirm change user and admin password on web GUI to avoid typo or mistakes.
[Confirm Admin Password][Confirm End User Password]

Add new iLBC libraries to improve iLBC audio quality.
Firmware Version 1.0.1.9

This is the initial version for HT802.
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GUI INTERFACE EXAMPLES
http://www.grandstream.com/sites/default/files/Resources/ht802_web_gui.zip
1. Screenshot of Login Page
2. Screenshots of Status Page
3. Screenshots of Basic Settings Page
4. Screenshots of Advanced Settings Page
5. Screenshots of FXS Port 1 Page
6. Screenshots of FXS Port 2 Page
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WELCOME
The HT802 analog telephone adapter provides transparent connectivity for analog phones and faxes to the
world of internet voice. Connecting to any analog phone, fax or PBX, the HT802 is an effective and flexible
solution for accessing internet-based telephone services and corporate intranet systems across established
LAN and internet connections. The Grandstream handy tone HT802 is a new addition to the popular handy
tone ATA product family. This manual will help you learn how to operate and manage your HT802 analog
telephone adaptor and make the best use of its many upgraded features including simple and quick
installation, 3- way conferencing, direct IP-IP Calling, and new provisioning support among other features.
This HT802 is very easy to manage and configure, and is specifically designed to be an easy to use and
affordable VoIP solution for both the residential user and the teleworker.
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PRODUCT OVERVIEW
The HT802 is a 2 port analog telephone adapter (ATA) that allows users to create a high-quality and
manageable IP telephony solution for residential and office environments. Its ultra-compact size, voice
quality, advanced VoIP functionality, security protection and auto provisioning options enable users to take
advantage of VoIP on analog phones and enables service providers to offer high quality IP service. The
HT802 is an ideal ATA for individual use and for large scale commercial IP voice deployments.
Feature Highlights
The following table contains the major features of the HT802:
Table 1: HT802 Features in a Glance
HT802

2 SIP profiles through 2 FXS ports and single 10/100Mbps port

3-way voice conferencing

Wide range of caller ID formats

Advanced telephony features, including call transfer, call forward, callwaiting, do not disturb, message waiting indication, multi-language
prompts, flexible dial plan and more

T.38 Fax for creating Fax-over-IP and GR-909 Line Testing Functionalities

TLS and SRTP security encryption technology to protect calls and
accounts

Automated provisioning options include TR-069 and XML config files

Failover SIP server automatically switches to secondary server if main
server loses connection
HT802 Technical Specifications
Following tables resumes all the technical specifications including the protocols/standards supported,
voice codecs, telephony features, languages, flash/memory size and upgrade/provisioning settings for the
HT802.
Table 2: HT802 Technical Specifications
Interfaces
Telephone Interfaces
Two (2) RJ11 FXS ports
Network Interface
One (1) 10/100Mbps auto-sensing Ethernet port (RJ45)
LED Indicators
POWER, INTERNET, PHONE1, PHONE2
Factory Reset Button
Yes
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Voice, Fax, Modem
Telephony Features
Caller ID display or block, call waiting, flash, blind or attended transfer,
forward, hold, do not disturb, 3-way conference
Voice Codecs
G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B,
G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation
Fax over IP
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to
G.711 for Fax Pass-through
Short/Long Haul Ring Load
2 REN: Up to 1km on 24 AWG
Caller ID
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Disconnect Methods
Busy Tone, Polarity Reversal/Wink, Loop Current
Signaling
Network Protocols
TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP,
NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP,
TR-069
QoS
Layer 3 (ToS, DiffServ, MPLS)
DTMF Methods
In-audio, RFC2833 and/or SIP INFO
Provisioning and Control
HTTP, HTTPS, TELNET, TFTP, TR-069, secure and automated
provisioning using AES encryption, syslog
Security
Media
SRTP
Control
TLS/SIPS/HTTPS
Management
Syslog support, telnet, remote management using web browser
Physical
Universal Power Supply
Input: 100-240VAC, 50-60Hz
Output: 5.0VDC/1.0A
Environmental
Operational: 32o – 104oF or 0º – 40ºC
Storage: 14o – 140oF or -10º – 60ºC
Humidity: 10 – 90% Non-condensing
Dimensions and Weight
100mm x 100mm x 29.5mm, 114g (without package)
Flash size
16 MiB
Memory size
32 MiB
Compliance
Compliance
FCC 15B, AS/NZS CISPR22, AS/NZS60950, EN55022, EN55024,
EN60950,
EN61000-3-2, EN61000-3-3, UL (Power supply)
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GETTING STARTED
This chapter provides basic installation instructions including the list of the packaging contents and also
information for obtaining the best performance with the HT802.
Equipment Packaging
The HT802 ATA package contains:
1x 5V Power Adapter
1x HT802
1x Quick Installation Guide
1x Ethernet Cable
1x GPL Statement
Figure 1: HT802 Package Contents
Note: Check the package before installation. If you find anything missing, contact your system administrator.
HT802 Ports Description
The following figure describes the different ports on the back panel of the HT802.
Internet
Micro USB
Phone 1 & 2
Port
Power DC
(RJ-11 FXS Ports)
Figure 2: HT802 Back Panel
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Table 3: Definition of the HT802 Connectors
Phone 1 & 2
Connects the analog phones / fax machines to the phone adapter using
an RJ-11 telephone cable.
Internet port
Connects the phone adapter to your router or gateway using an Ethernet
RJ45 network cable.
Micro-USB Power
Reset
co
Powers the phone adapter (5V – 1A).
Factory reset button. Press for 7 seconds to reset factory default settings.
Connecting HT802
The HT802 is designed for easy configuration and easy installation, to connect your HT802, please follow
the steps above:
1. Insert a standard RJ11 telephone cable into the p hone port and connect the other end of the
telephone cable to a standard touch-tone analog telephone.
2. Insert the Ethernet cable into the internet or LAN port of the HT802 and connect the other end
of the Ethernet cable to an uplink port (a router or a modem, etc.)
3. Insert the power adapter into the HT802 and connect it to a wall outlet.
4. Power, Ethernet and Phone LEDs will be solidly lit when the HT802 is ready for use.
Figure 3: Connecting the HT802
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HT802 LEDs Pattern
There are four (4) LED buttons that help you manage the status of your Handy Tone 802.
Figure 4: HT802 LEDs Pattern
Table 4: HT802 LEDs Pattern Description
LED Lights
Power LED
Status
The Power LED lights up when the HT802 is powered on and it flashes when
the HT802 is booting up
Internet LED
The Ethernet LED lights up when the HT802 is connected to your network
through the Ethernet port and it flashes when there is data being sent or
received.
Phone LED 1&2
The phone LED 1 & 2 indicate status of the respective FXS port-phone on
the back panel
 OFF - Unregistered
 ON (Solid Blue) - Registered and Available
 Blinking every second - Off-Hook / Busy
 Slow blinking - FXS LEDs indicates voicemail
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CONFIGURATION GUIDE
The HT802 can be configured via one of two ways:

The IVR voice prompt menu.

The Web GUI embedded on the HT802 using PC's web browser.
Obtain HT802 IP Address via Connected Analogue Phone
HT802 is by default configured to obtain the IP address from DHCP server where the unit is located. In
order to know which IP address is assigned to your HT802, you should access to the “Interactive Voice
Response Menu” of your adapter via the connected phone and check its IP address mode.
Please refer to the steps bellow to access the interactive voice response menu:
1. Use a telephone connected to phone 1 or phone 2 ports of your HT802.
2. Press *** (press the star key three times) to access the IVR menu and wait until you hear “Enter
the menu option “.
3. Press 02 and the current IP address will be announced.
Understanding HT802 Interactive Voice Prompt Response Menu
The HT802 has a built-in voice prompt menu for simple device configuration which lists actions, commands,
menu choices, and descriptions. The IVR menu works with any phone connected to the HT802. Pick up the
handset and dial “***” to use the IVR menu.
Table 5: Voice Prompt Menu
Menu
Voice Prompt
Options
Main
“Enter a Menu Option”
Press “*” for the next menu option
Menu
Press “#” to return to the main menu
Enter 01-05, 07,10, 13-17,47 or 99 menu options
01
“DHCP Mode”,
Press “9” to toggle the selection
“Static IP Mode”
If using “Static IP Mode”, configure the IP address
information using menus 02 to 05.
If using “Dynamic IP Mode”, all IP address information
comes from the DHCP server automatically after
reboot.
02
“IP Address “ + IP
The current WAN IP address is announced
address
If using “Static IP Mode”, enter 12 digit new IP
address. You need to reboot the HT802 for the new
IP address to take Effect.
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03
“Subnet “ + IP address
Same as menu 02
04
“Gateway “ + IP address
Same as menu 02
05
“DNS Server “ + IP
Same as menu 02
address
07
Preferred Vocoder
Press “9” to move to the next selection in the list:

PCM U / PCM A

iLBC

G-726

G-723

G-729
10
“MAC Address”
Announces the Mac address of the unit.
13
Firmware Server IP
Announces current Firmware Server IP address.
Address
Enter 12 digit new IP address.
Configuration Server IP
Announces current Config Server Path IP address.
Address
Enter 12 digit new IP address.
Upgrade Protocol
Upgrade protocol for firmware and configuration
14
15
update. Press “9” to toggle between TFTP / HTTP /
HTTPS
16
Firmware Version
Announces Firmware version information.
17
Firmware Upgrade
Firmware upgrade mode. Press “9” to toggle among
the following three options:
- always check
- check when pre/suffix changes
- never upgrade
47
“Direct IP Calling”
Enter the target IP address to make a direct IP call,
after dial tone. (See “Make a Direct IP Call”.)
86
Voice Mail
Number of Voice Mails
99
“RESET”
Press “9” to reboot the device
Enter MAC address to restore factory default setting
(See Restore Factory Default Setting section)
“Invalid Entry”
Automatically returns to main menu
“Device not registered”
This prompt will be played immediately after off hook
If the device is not register and the option “Outgoing
Call without Registration” is in NO
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Five success tips when using the voice prompt

“*” shifts down to the next menu option and “#” returns to the main menu.

“9” functions as the ENTER key in many cases to confirm or toggle an option.

All entered digit sequences have known lengths - 2 digits for menu option and 12 digits for IP
address. For IP address, add 0 before the digits if the digits are less than 3 (i.e. - 192.168.0.26
should be key in like 192168000026. No decimal is needed).

Key entry cannot be deleted but the phone may prompt error once it is detected.
Configuration via Web Browser
The HT802 embedded Web server responds to HTTP GET/POST requests. Embedded HTML pages allow
a user to configure the HT802 through a web browser such as Google Chrome, Mozilla Firefox and
Microsoft’s IE.
Accessing the Web UI
1. Connect the computer to the same network as your HT802.
2. Make sure the HT802 is booted up.
3.
You may check your HT802 IP address using the IVR on the connected phone.
Please see Obtain HT802 IP Address via Connected Analogue Phone
4. Open Web browser on your computer.
5. Enter the HT802’s IP address in the address bar of the browser.
6. Enter the administrator’s password to access the Web Configuration Menu (default password is:
admin).
Note: The computer must be connected to the same sub-network as the HT802. This can be easily done
by connecting the computer to the same hub or switch as the HT802.
Web UI Access Level Management
There are two default passwords for the login page:
User Level
Password
Web Pages Allowed
End User Level
123
Only Status and Basic Settings
Administrator Level
admin
All pages
The password is case sensitive with maximum length of 25 characters. When changing any settings, always
submit them by pressing Update or Apply button on the bottom of the page. After submitting the changes
in all the Web GUI pages, reboot HT802 to have the changes take effect if necessary; most of the options
under the Advanced Settings and FXS Port (x) pages require reboot.
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Saving the Configuration Changes
After users makes changes to the configuration, pressing Update button will save but not apply the changes
until Apply button is clicked. Users can instead directly press Apply button. We recommend rebooting or
powering cycle the phone after applying all the changes.
Changing Admin Level Password
1. Access your HT802 web UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings and navigate to Advanced Settings > Admin Password.
4. Enter the new admin password.
5. Confirm the new admin password.
6. Press Apply at the bottom of the page to save your new settings.
Figure 5: Admin Level Password
Changing User Level Password
1. Access your HT802 web UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings and navigate to Basic Settings > End User Password.
4. Enter the new end-user password.
5. Confirm the new end-user password.
6. Press Apply at the bottom of the page to save your new settings.
Figure 6: User Level Password
Changing HTTP Web Port
1. Access your HT802 web UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings and navigate to Basic Settings > Web Port.
4. Change the current port to your desired/new HTTP port. Ports accepted are in range [1-65535].
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5. Press Apply at the bottom of the page to save your new settings.
Figure 7: Web HTTP Port
Web Configuration Pages Definitions
This section describes the options in the HT802 Web UI. As mentioned, you can log in as an administrator
or an end user.

Status: Displays the system info, network status, account status, and line options.

Basic Settings: Configures the end user level password, IP address modes, web access, time zone
settings and language.

Advanced Settings: Configures networks, upgrading and provisioning, TR-069, security settings,
date and time, syslog, audio settings, call settings and call progress tones.

FXS Port (1,2): Configures SIP settings, SIP registration, accounts settings, NAT settings, call features,
ring tones.
Status Page Definitions
Table 6: Status Page Definitions
Account Status
MAC Address
Shows device ID in hexadecimal format. This is needed by network administrators
for troubleshooting. The MAC address will be used for provisioning and can be
found on the label on original box and on the label located on the bottom panel of
the device.
IP Address
Displays assigned IP address. Example: 192.168.5.110.
Product Model
Displays product model info. Default is HT802.
Hardware Version
Displays the hardware revision information and the part number.
Software version

Program: Specifies Program version. Current is 1.0.2.5 This is the main
firmware release number, which is always used for identifying the software
system of the HT802.

Bootloader: Specifies Boot version. Current is 1.0.2.3

Core: Specifies Core version. Current is 1.0.2.3
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
Base: Specifies Base version. Current is 1.0.2.5

CPE: Specifies CPE version. CPE version is displayed only when HT802 is
connected to an ACS using TR-069 protocol.
Software Status
Indicates actual software status.
System Up Time
Indicates actual system time and uptime since last reboot.
PPPoE Link Up
Indicates PPPoE connection status.
NAT
Indicates type of NAT when it’s configured.
Port Status
Displays relevant information regarding the FXS ports about their registration,
DND and call forward features.
Port Options
Displays relevant information regarding the FXS ports about their DND and call
forward features.
Provision
Displays provisioning status.
Core Dump
Provides generated core dump file if unit malfunctions.
Clean will be displayed if no issues.
GR909
Click on “Test Page” to be redirected to lines tests page (Hazardous Potential,
Foreign Electromotive Forces, Resistive Faults, Receiver Off hook and Ringer
Equivalent Number )
Basic Settings Page Definitions
Table 7: Basic Settings Page
Basic Settings
End User Password Configures user level password. Case sensitive and max. length of 25
characters.
Confirm End User
Re-enter the end user password to confirm change user password on web GUI to
Password
avoid typo or mistakes.
Web Port
Customizes HTTP port used to access the HT802 web UI. Default is 80.
Telnet Server
Enables / Disables access via telnet. Default is Yes (activated).
IP Address
Specifies IP Address to use on HT802.There are three modes to operate the
HT802:
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
DHCP mode: all the field values for the static IP mode are not used
(even though they are still saved in the flash memory.) The HT802
acquires its IP address from the first DHCP server it discovers from the
LAN it is connected.

Use PPPoE: set the PPPoE account settings. If selected, HT802 attempt
to establish a PPPoE session if any of the PPPoE fields is set.

Static IP mode: configure IP address, subnet Mask, default router IP
address, 1st preferred DNS server, 2nd preferred DNS server. These
fields are set to zero by default.
DHCP hostname
Specifies the name of the client. The name may or may not be qualified with the
local domain name. This field is optional but may be required by ISP.
DHCP vendor class Exchanges vendor class ID by clients and servers to convey particular
ID
configuration or other identification information about a client. Default is HT8XX.
PPPoE account ID
Defines the PPPoE username. Necessary if ISP requires you to use a PPPoE
(Point to Point Protocol over Ethernet) connection.
PPPoE password
Specifies the PPPoE account password.
PPPoE Service
Defines PPPoE service name. If your ISP uses a service name for the PPPoE
Name
connection, enter the service name here. This field is optional. Default is blank.
Preferred DNS
Specifies preferred DNS server to use when DHCP or PPPoE are set.
server
Time Zone
Selects time zone to define date/time on the device.
Self-Defined Time
Allows users to define their own time zone.
Zone
Allow DHCP server Obtains time zone setting (offset) from a DHCP server using DHCP Option 2; it
to set Time Zone
will override selected time zone. If set to “No”, the analogue adapter will use
selected time zone even if provided by DHCP server. The Default setting is Yes.
Language
Configures the languages of the voice prompt and web interface, except Spanish
that it is only in IVR. Available languages: English, Chinese or Spanish IVR.
Reset Type
Gives the administrator the option to restore default configuration on the HT802.
There are 3 types of factory reset:

ISP Data Reset: All VoIP related configuration (mainly everything located on
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FXS page).

VOIP Data Reset: All ISP (Internet Service Provider) configuration which
may affect the IP address.

Full Reset: Both VoIP and ISP related configuration at the same time.
Note: After you choose the reset type, you will have to click the reset button to
take effect.
Advanced Settings Page Definitions
Table 8: Advanced Settings
Advanced Settings
New Admin
Defines the administrator level password to access the Advanced Web
Password
Configuration page. This field is case sensitive. Only the administrator can
configure the “Advanced Settings” page. Password field is purposely left blank for
security reasons after clicking update and saved. Max. length is 25 characters.
Confirm Admin
Confirms the new admin password.
Password
Layer 2 QoS
Sets values for 802.1Q/VLAN Tag. Default is 0. Valid range is 0-4094.
SIP 802.1p. Default is 0. Valid range is 0-7.
RTP 802.1p. Default is 0. Valid range is 0-7.
STUN Server is
Configures IP address or domain name of STUN server. Only non-symmetric NAT
routers work with STUN.
Keep-alive interval
Sends periodically a blank UDP packet to SIP server in order to keep the "ping
hole" on the NAT router open.
Default is 20 seconds.
Use STUN to
Uses STUN keep-alive to detect WAN side network problems. If keep-alive request
detect
does not yield any response for configured number of times (minimum 3), the
network
device will restart the TCP/IP stack. If the STUN server does not respond when the
connectivity
device boots up, the feature is disabled. Default setting is No.
Use DNS to detect
Uses DNS to detect WAN side network problems. Default setting is No.
network
connectivity
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Verify host when
Enables / disables the host verification when using HTTPS.
using HTTPS
Upgrade via
Selects firmware upgrade/provisioning method: TFTP, HTTP or HTTPS.
Firmware Server
Path
Sets IP address or FQDN of firmware server. The URL of the server that hosts the
firmware release. Default is fm.grandstream.com/gs.
Config Server Path Sets IP address or FQDN of configuration server. The URL of the server that hosts
the configuration file to provision HT802. Default is fm.grandstream.com/gs.
XML Config File
Decrypts XML configuration file when encrypted. The password used for encrypting
Password
the XML configuration file using OpenSSL.
HTTP/HTTPS User
Enters user name to authenticate with HTTP/HTTPS server.
Name
HTTP/HTTPS
Enters password to authenticate with HTTP/HTTPS server.
Password
Firmware File
Checks if firmware file is with matching prefix before downloading it. This field
Prefix
enables user to store different versions of firmware files in one directory on the
firmware server.
Firmware File
Checks if firmware file is with matching postfix before downloading it. This field
Postfix
enables user to store different versions of firmware files in one directory on the
firmware server.
Config File
Checks if configuration files are with matching prefix before downloading them.
Prefix
This field enables user to store different configuration files in one directory on the
provisioning server.
Config File
Checks if configuration files are with matching postfix before downloading them.
Postfix
This field enables user to store different configuration files in one directory on the
provisioning server.
Allow DHCP
Obtains configuration and upgrade server’s information using options 66 from DHCP
Option 66 to
server.
Override Server
Note: If DHCP Option 66 is enabled, the HT802 will attempt downloading the
firmware file from the server URL provided by DHCP, even though Config Server
Path is left blank
3CX Auto
Sends multicast “SUBSCRIBE” message for provisioning at booting stage, used for
Provision
PnP (Plug-and-Play) configuration. Default is Yes.
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Automatic
Upgrade
Specifies when the firmware upgrade process will be initiated; there are 4 options:
 No: The HT802 will only do upgrade once at boot up. Default is No.
 Check every X minutes: User needs to specify a period in minutes.
 Check every day: User needs to specify “Hour of the day (0-23)”.
 Check every week: User needs to specify “Hour of the day (0-23)” and
“Day of the week (0-6)”. (Day of week is starting from Sunday).
Always Check for
Configures the HT802 to always search the new firmware at boot up.
New Firmware at
Boot up
Check New
Permits the HT802 to search for the new firmware when the firmware prefix / suffix
Firmware only
changes.
when F/W
pre/suffix changes
Always Skip the
Configures the HT802 to skip the firmware check.
Firmware Check
Disable SIP
Disables the SIP NOTIFY Authentication on the phone. If set to “Yes”, the phone
NOTIFY
will not challenge NOTIFY with 401. The default setting is “No”
Authentication
Authenticate
Authenticates configuration before being accepted. This protects the configuration
Conf File
from unauthorized modifications. Default is No.
SIP TLS Certificate
Specifies SSL certificate used for SIP over TLS is in X.509 format. The HT802 has
built-in private key and SSL certificate.
SIP TLS Private
Specifies TLS private key used for SIP over TLS is in X.509 format.
Key
SIP TLS Private
Specifies SSL Private key password used for SIP Transport in TLS/TCP.
Key Password
Enable TR-069
Sets the phone system to enable the “CPE WAN Management Protocol” (TR-069).
Default setting is No.
ACS URL
Specifies URL of TR-069 Auto Configuration Servers (e.g.,
http://acs.mycompany.com), or IP address.
ACS Username
Enters username to authenticate to ACS.
ACS Password
Enters password to authenticate to ACS.
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Periodic Inform
Sends periodic inform packets to ACS. Default is No
Enable
Periodic Inform
Sets frequency that the inform packets will be sent out to ACS.
Interval
Connection
Enters username for ACS to connect to the HT802.
Request Username
Connection
Enters password for ACS to connect to the HT802.
Request Password
CPE SSL Certificate Configures the Cert File for the phone to connect to the ACS via SSL.
CPE SSL Private
Specifies the Cert Key for the phone to connect to the ACS via SSL.
Key
System Ring
Sets ring cadences for all incoming calls.
Cadence
Syntax: c=on1/off1-on2/off2-on3/off3;) Default is set to c=2000/4000; (US
standards), on1 is the period of ringing ("On time" in "ms") while off1 is the period
of silence. Up to three cadences are supported.
Call Progress
Configures tone frequencies according to user preference. By default, the tones
Tones
are set to North American frequencies. Frequencies should be configured with
known values to avoid uncomfortable high pitch sounds. ON is the period of ringing
(ON time in ms) while OFF is the period of silence. In order to set a continuous
ring, OFF should be zero. Otherwise it will ring ON ms and a pause of OFF ms and
then repeats the pattern.

“Dial tone”

“Ring back tone”

“Busy tone”

“Reorder tone”

“Confirmation tone”

“Call-Waiting tone”

“Prompt Tone”
Please refer to the document below to determine your local call progress tones:
http://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdf
Prompt Tone
Specifies the key pattern to get Prompt Tone. Maximum 20 digits
Access Code
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Lock Keypad
Locks configuration update via keypad. Default is No.
Update
Disable Voice
Removes ability to use integrated voice prompt menu configuration. Default is No.
Prompt
Disable Direct IP
Deactivates Direct IP-to-IP calling function. Default is No.
Call
NTP Server
Defines URL or IP address of the NTP (Network Time Protocol). Used by the
HT802 to synchronize the date and time. Public NTP servers can be found at
http://www.ntp.org .
Allow DHCP Option Obtains NTP server address from a DHCP server using DHCP Option 42; it will
42 to NTP Server
override configured NTP Server. If set to “No”, the HT802 will use configured NTP
server to synchronize time and date even if a NTP server is provided by DHCP
server. Default is Yes.
Syslog Server
Sets IP address or URL of system log server. The server collects system log
information from the HT802.
Syslog Level
Selects log level; the level is one of DEBUG, INFO, WARNING, ERROR. Syslog
messages are sent based on the following events. Default is NONE:
1. product model/version on boot up (INFO level)
2. NAT related info (INFO level)
3. sent or received SIP message (DEBUG level)
4. SIP message summary (INFO level)
5. inbound and outbound calls (INFO level)
6. registration status change (INFO level)
7. negotiated codec (INFO level)
8. Ethernet link up (INFO level)
9. SLIC chip exception (WARNING and ERROR levels)
10. memory exception (ERROR level)
The Syslog uses USER facility. In addition to standard Syslog payload, it contains
the following components: GS_LOG: [device MAC address] [error code] error
message.
Example:
May
19
02:40:38
192.168.1.14
GS_LOG:
[00:0b:82:00:a1:be][000] Ethernet link is up
Send SIP Log
Configures the HT802 to send a replicate of the SIP packets on the syslog. Default
is No
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Download Device
Downloads actual device configuration file in .xml format.
Configuration
Download Device
Downloads actual device configuration file in .xml format.
XML Configuration
Upload Firmware
Allows the user to upgrade the firmware with a single firmware file by browsing
and loading the file from your computer (local directory).
Upload
Allows users to upload the configuration file by browsing and loading it from
Configuration
computer (local directory).
FXS Port (1,2) Pages Definitions
Table 9: FXS Port (1,2)
FXS Port (1,2)
Accounts Active
Activates / Deactivates the accounts.
Primary SIP Server
Configures SIP server IP address or domain name provided by VoIP service provider.
This is the primary SIP server used to send/receive SIP messages from/to HT802.
Failover SIP Server Specifies failover SIP server IP address or domain name provided by VoIP service
provider. This server will be used if the primary SIP server becomes unavailable.
Prefer Primary SIP
Selects to prefer primary SIP server. The account will register to primary Server if
Server
registration with Failover server expires. Default is No.
Outbound Proxy
Specifies IP address or domain name of outbound Proxy, or media gateway, or session
border controller. Used by HT802 for firewall or NAT penetration in different network
environments. If symmetric NAT is detected, STUN will not work and only outbound
proxy can correct the problem.
Allow DHCP Option Configures the HT802 to collect SIP server address from DHCP option 120. Default is
120 (override SIP
No
Server)
SIP transport
Selects transport protocol for SIP packets; UDP or TCP or TLS. Please make sure your
SIP Server or network environment supports SIP over the selected transport method.
Default is UDP.
NAT Traversal
Indicates type of NAT for each account. (Based on STUN protocol.)
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SIP User ID
Defines user account information provided by VoIP service provider (ITSP). Usually in
the form of digit similar to phone number or actually a phone number.
Authenticate ID
Determines account authenticate ID provided by VoIP service provider (ITSP). Can be
identical to or different from “SIP user ID”.
Authenticate
Specifies account password provided by VoIP service provider (ITSP) to register to SIP
Password
servers.
Name
Chooses a name to be associated to user.
DNS Mode
Selects DNS mode to use for the client to look up server. One mode can be chosen.

A Record: resolves IP Address of target according to domain name.

SRV: DNS SRV resource records indicate how to find services for various
protocols.

NAPTR/SRV: Naming Authority Pointer according to RFC 2915.

Use Configured IP: If selected, please fill in Primary IP, Backup IP 1 and Backup
IP 2 to be used for server look up. Default is A Record.
TEL URI
Indicates E.164 number in “From” header by adding “User=Phone” parameter or using
“Tel:” in SIP packets, if the HT802 has an assigned PSTN Number.

Disabled: Use “SIP User ID” information in the Request-Line and “From”
header.

User=Phone: “User=Phone” parameter will be attached to the Request-Line
and “From” header in the SIP request to indicate the E.164 number. If set to
"Enable".

Enabled: "Tel:" will be used instead of "sip:" in the SIP request.
Please consult your carrier before changing this parameter. Default is Disabled.
SIP Registration
Shows the status of SIP registration. If the SIP account is successfully registered, it will
display “YES” with green background. If the SIP account is not registered, it will display
“NO” with red background.
Unregister on
Controls whether to clear SIP user’s information by sending un-register request to the
Reboot
proxy server. The un-registration is performed by sending a REGISTER message with
Contact set to * and Expires=0 parameters to the SIP server. This will unregister all SIP
accounts under the concerned FXS. Default is No.
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Outgoing Call
Without
Registration
Enables the ability to place outgoing calls even when not registered (if allowed by ITSP);
device will not be to receive incoming calls. Default is No.
Register Expiration Refreshes registration periodically with specified SIP proxy (in minutes). Maximum
interval is 65535 minutes (about 45 days). Default is 60 minutes (or 1 hour).
Reregister Before
Sends re-register request after specific time (in seconds) to renew registration before
Expiration
the previous registration expires.
SIP Registration
Sends re-register request after specific time (in seconds) when registration process fails.
Failure Retry Wait
Maximum interval is 3600 seconds (1 hour).
Time
Default is 20 seconds.
SIP Registration
Sends re-register request after specific time (in seconds) when registration process fails
Failure Retry Wait
with error 403 Forbidden. Maximum interval is 3600 seconds (1 hour).
Time upon 403
Default is 1220 seconds.
Forbidden
Enable SIP
Enables SIP OPTIONS to track account registration status so the phone will send
OPTIONS Keep
periodic OPTIONS message to server to track the connection status with the server.
Alive
Default setting is "No"
SIP OPTIONS Keep Configures the time interval when the phone send OPTIONS message to SIP server.
Alive Interval
The default setting is 30 seconds, which means the phone will send an OPTIONS
message to the server every 30 seconds. The default range is 1-64800
SIP OPTIONS Keep Defines the (Number of max lost packets for SIP OPTIONS Keep Alive before reAlive Max Lost
registration. Between 3-10, default is 3)
Layer 3 QoS
Defines Diff-Serv values for SIP and RTP. Defaults are:
SIP Diff-Serv: 26 / RTP Diff-Serv: 46
Local SIP Port
Defines local port to use by the HT802 for listening and transmitting SIP packets. Default
value for FXS 1 is 5060 and 5062 for FXS 2.
Local RTP Port
Defines the local RTP-RTCP port pair the HT802 will listen and transmit. It is the HT802
RTP port for channel 0. The default value for FXS port is 5004.
Use Random SIP
Controls whether to use configured or random SIP ports. This is usually necessary when
Port
multiple HT802 are behind the same NAT. Default is No.
Use Random
Controls whether to use configured or random SIP ports. This is usually necessary when
RTP Port
multiple HT802 are behind the same NAT. Default is No.
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Hold Target
Allows user to hold the phone call before refer it. If set to No, the call will not be hold
Before Refer
before referred. Default is Yes.
Refer-To Use
Includes target’s “Contact” header information in “Refer-To” header when using attended
Target Contact
transfer. Default is No.
Transfer on
If the conference originator hangs up the conference will be terminated, and this option
Conference Hang-
is enabled, the originator will transfer other parties to each other so they can choose to
up
either continue the conversation or hang-up. Default is No
Disable Bellcore
Gives the users the possibility of making conference calls by pressing “Flash” key, when
Style 3-Way
it’s enabled by dialing *23 +second callee number. Default is No
Conference
Remove OBP from
Removes outbound proxy info in “Route” header when sending SIP packets. Default is
Route Header
No.
Support SIP
Includes “SIP Instance ID” attribute to “Contact” header in REGISTER request as
Instance ID
defined in IETF SIP outbound draft. Default is No.
Validate Incoming
Validates incoming messages. Default is No.
Messages
Check SIP User ID
Checks SIP User ID in the Request URI of incoming INVITE; if it doesn't match the
for Incoming
HT802 SIP User ID, the call will be rejected. Direct IP calling will also be disabled. Default
INVITE
is No.
Authenticate
Challenges the incoming INVITE for authentication with SIP 401 Unauthorized message.
Incoming INVITE
Default is No.
Authenticate
Configures
server certificate
firmware/config file. If it is set to "Yes", the phone will download the firmware/config file
domain
only from the legitimate server. The default setting is "No".
Authenticate
Configures whether to validate the server certificate when download the firmware/config
server certificate
file. If it is set to "Yes", the phone will download the firmware/config file only from the
chain
legitimate server. The default setting is "No".
Trusted CA
Uses the certificate for Authentication if “Check Domain Certificates” is set to “Yes” under
Certificates
“Account” -> “SIP Settings”.
whether to validate the domain certificate when download the
Allow Incoming SIP Checks SIP address of the Request URI in the incoming SIP message; if it doesn't match
Messages from SIP the SIP server address of the account, the call will be rejected. Default is No.
Proxy Only
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Use Privacy
Adds “Privacy” header if special feature is set to “Default”, and not “CBCOM”.
Header
Use P-Preferred-
Adds “PPI” header if special feature is set to “Default”, and not “CBCOM”.
Identity Header
SIP REGISTER
Specify which address (LAN or WAN address) the device will detect to use it in SIP
Contact Header
Register Contact Header. Default is LAN Address.
Uses
SIP T1 Timeout
Defines T1 timeout value.
It is an estimate of the round-trip time between the client and server transactions.
For example, the HT802 will attempt to send a request to a SIP server. The time it takes
between sending out the request to the point of getting a response is the SIP T1 timer.
If no response is received the timeout is increased to (2*T1) and then (4*T1). Request
re-transmit retries would continue until a maximum amount of time defined by T2. Default
is 0.5 seconds.
SIP T2 Interval
Identifies maximum retransmission interval for non-INVITE requests and INVITE
responses. Retransmitting and doubling of T1 continues until it reaches T2 value. Default
is 4 seconds.
SIP Timer D
Configure the SIP Timer D defined in RFC3261. 0 - 64 seconds. Default 0
DTMF Payload
Defines payload type for DTMF using RFC2833.
Type
Preferred DTMF
Sorts DTMF methods (in-audio, via RTP (RFC2833) or via SIP INFO) by priority.
method (in order)
Disable DTMF
Uses above DTMF order without negotiation. Default is No.
Negotiation
Generate
When enabled the RFC2833 events are generated until key is released. Default is No.
Continuous
RFC2833 Events
Send Hook Flash
Default is No. If set to yes, flash will be sent as DTMF event.
Event
Flash Digit Control
Overrides the default settings for call control when both channels are in use
Enable Call
Enables do not disturb, call forward and other call features via the local feature codes
Features
on the base. Otherwise, ITSP feature codes can be used. Default is Yes.
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Off Hook Auto Dial
Configures a user ID or extension number that is automatically dialed when off-hook.
Only the user part of a SIP address needs to be entered. The HT802 will automatically
append the “@” and the host portion of the corresponding SIP address.
Off Hook Auto Dial
Specifies the auto-dial delay after off hook.
Delay
Proxy-Require
Determines a SIP Extension to notify the SIP server that the HT802 is behind a
NAT/Firewall.
Use NAT IP
Defines NAT IP address used in SIP/SDP messages. It should only be used if required
by ITSP.
Use SIP User Agent Configures the SIP User-Agent Header.
Header
Distinctive Ring
Customizes the Ring Tone 1 to 3 with associate caller ID: when selected, if caller ID is
Tone
configured, then the device will ONLY use this ring tone when the incoming call is from
the Caller ID. System Ring Tone is used for all other calls. When selected but no Caller
ID is configured, the selected ring tone will be used for all incoming calls using the FXS
port. Distinctive ring tones can be configured not only for matching a whole number, but
also for matching prefixes. In this case symbol * (star) will be used.
For example: If configured as *617, Ring Tone 1 will be used in case of call arrived from
the area code 617. Any other incoming call will ring using cadence defined in parameter
System Ring Cadence located under Advanced Settings Configuration page.
Note: If server supports Alert-Info header and standard ring tone set (Bellcore) or
distinctive ring tone 1-10 is specified, then the ring tone in the Alert-Info header from
server will be used. Bellcore rings and tones are independent from custom ring tones.
The custom ring tones can also be specified by alert-info header, for example AlertInfo: ;info=ring5
Disable Call
Disables receiving a second incoming call when the line is engaged.
Waiting
Default is No.
Disable Call
Disables displaying caller ID when receiving a second incoming call. Default is No.
Waiting Caller ID
Disable Call
Disables playing call waiting tone during active call when receiving a second incoming
Waiting Tone
call. The CWCID will still be displayed. Default is No.
Disable Connected
Disables displaying the number of the person answering the phone. Default is No.
Line ID
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Disable Receiver
Enables / disables the warning to alert that the phone has been left off-hook for an
Off hook Tone
extended period of time. Default is No.
Disable Reminder
Enables playing the reminder ring. Default is No
Ring for On-Hold
Call
Disable Visual MWI Disables use of visual message waiting indicator when there is an unread voicemail
message. Default is No.
Do Not Escape '#'
Replaces # by %23 in some special situations. Default is No.
as %23 in SIP URI
Disable Multiple m
Sends only one m line in SDP, regardless of how many m fields are in the incoming SDP.
Line in SDP
Default is No.
Ring Timeout
Stops ringing when incoming call if not answered within a specific period of time. Default
is 60 seconds.
Delayed Call
Forwards incoming call if not answered within a specific period of time when delayed
Forward Wait
call forward is activated locally (using *92 code). Default value is 20 seconds.
Timeout
No Key Entry
Initiates the call within this time interval if no additional key entry during dialing stage.
Timeout
Default is 4 seconds.
Early Dial
Sends an early INVITE each time a key is pressed when a user dials a number.
Otherwise, only one INVITE is sent after full number is dialed (user presses Dial Key or
after “no key entry timeout” expires). This option should be used only if there is a SIP
proxy is configured and supporting 484 responses (Incomplete Address). Otherwise, the
call will likely be rejected by the proxy (with a 404 Not Found error). Default is No.
This feature is NOT designed to work with and should NOT be enabled for direct IP-toIP calling.
Dial Plan Prefix
Adds specified prefix to dialed number.
Use # as Dial Key
Treats “#” as the “Send” (or “Dial”) key. If set to “No”, this “#” key can be included as part
of the dialed number. Default is Yes.
Dial Plan
Dial Plan Rules:
1. Accept Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d
2. Grammar: x - any digit from 0-9;
a. xx+ - at least 2 digits number;
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b. xx – exactly 2 digits number;
c.
^ - exclude;
d. . – wildcard, matches one or more characters
e. [3-5] - any digit of 3, 4, or 5;
f.
[147] - any digit 1, 4, or 7;
g. <2=011> - replace digit 2 with 011 when dialing
h. < =1> - add a leading 1 to all numbers dialed, vice versa will remove a
1 from the number dialed
i.
| - or
Example 1: {[369]11 | 1617xxxxxxx} –
•
Allow 311, 611, 911, and any 10 digit numbers of leading digits 1617
Example 2: {^1900x+ | <=1617>xxxxxxx} –
•
Block any number with leading digits 1900 and add prefix 1617 for any
dialed 7 digit numbers
•
Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} –
Allow any length of number with leading digit 2 and 10 digit-numbers of
leading digit 1 and leading exchange number between 2 and 9; If leading
digit is 2, replace leading digit 2 with 011 before dialing.
3. Default: Outgoing - {x+}
Example of a simple dial plan used in a Home/Office in the US:
{ ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 }
Explanation of example rule (reading from left to right):
• ^1900x. - prevents dialing any number started with 1900
• <=1617>[2-9]xxxxxx
- allows dialing to local area code (617) numbers by dialing
7 numbers and 1617 area code will be added automatically
• 1[2-9]xx[2-9]xxxxxx
- allows dialing to any US/Canada Number with 11 digits
length
• 011[2-9]x. - allows international calls starting with 011
• [3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 911
Note: In some cases, user wishes to dial strings such as *123 to activate voice mail or
other application provided by service provider. In this case * should be predefined inside
dial plan feature. An example dial plan will be: { *x+ } which allows the user to dial *
followed by any length of numbers.
SUBSCRIBE for
Sends SUBSCRIBE periodically (depends on “Register Expiration” parameter) for
MWI
message waiting indication. Default is No.
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Send Anonymous
Sets “From”, “Privacy” and “P_Asserted_Identity” headers in outgoing INVITE message
to “anonymous”, blocking caller ID. Default is No.
Anonymous Call
Rejects incoming calls with anonymous caller ID with “486 Busy here” message. Default
Rejection
is No.
Special Feature
Selects Soft switch vendors’ special requirements Example of vendors: Broadsoft,
CBCOM, RNK, Huawei, ZTE IME, PhonePower, Metaswitch. Default is Standard.
Session Expiration
Enables SIP sessions to be periodically “refreshed” via a SIP request (UPDATE, or reINVITE). When the session interval expires, if there is no refresh via an UPDATE or reINVITE message, the session will be terminated.
Session Expiration is the time (in seconds) at which the session is considered timed out,
if no successful session refresh transaction occurs beforehand. Default is 180 seconds.
Min-SE
Defines Minimum session expiration (in seconds). Default is 90 seconds.
Caller Request
Uses session timer when making outbound calls if remote party supports it. Default is
Timer
No.
Callee Request
Uses session timer when receiving inbound calls with session timer request. Default is
Timer
No.
Force Timer
Uses session timer even if the remote party does not support this feature. Selecting “No”
will enable session timer only when the remote party supports it. Default is No.
To turn off Session Timer, select “No” for Caller and Callee Request Timer, and Force
Timer.
UAC Specify
Refresher
UAS Specify
Refresher
Specifies which end will act as refresher for outgoing calls. Default is Omit.:

UAC: The handy tone acts as the refresher.

UAS: Callee or proxy server act as the refresher.
Specifies which end will act as refresher for incoming calls. Default is Omit.:

UAS: The handy tone acts as the refresher.

UAC: Callee or proxy server act as the refresher.
Force INVITE
Uses INVITE message to refresh the session timer. Default is No.
Enable 100rel
Appends “100rel” attribute to the value of the required header of the initial signaling
messages. Default is No.
Add Auth Header
Adds “Authentication” header with blank “nonce” attribute in the initial SIP REGISTER
on Initial
request. Default is No.
REGISTER
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Use First Matching
Includes only the first matching vocoder in its 200OK response, otherwise it will include
Vocoder in 200OK
all matching vocoders in same order received in INVITE. Default is No.
SDP
Preferred Vocoder
Configures vocoders in a preference list (up to 7 preferred vocoders) that will be included
with same order in SDP message. Vocoder types are G.711 A-/U-law, G.722, G.726-32,
G.723, G.729, iLBC and OPUS
Voice Frames per
Transmits a specific number of voice frames per packet. Default is 2; increases to
TX
10/20/32/64 for G711/G726/G723/other codecs respectively.
G723 Rate
Operates at specified encoding rate for G.723 vocoder. Available encoding rates are
6.3kbps or 5.3kbps. Default is 6.3kbps.
iLBC Frame Size
Specifies iLBC packet frame size (20ms or 30ms). Default is 20ms.
Disable OPUS
Disables OPUS stereo in SDP. Default is No.
Stereo in SDP
iLBC Payload type
Determines payload type for iLBC. Valid range is between 96 and 127. Default is 97.
OPUS Payload
Determines payload type for OPUS. The valid range is between 96 and 127. Default is
Type
123.
VAD
Allows detecting the absence of audio and conserves bandwidth by preventing the
transmission of "silent packets" over the network. Default is No.
Symmetric RTP
Changes the destination to send RTP packets to the source IP address and port of the
inbound RTP packet last received by the device. Default is No.
Fax Mode
Specifies the fax mode : T.38 (Auto Detect) FoIP by default, or Pass-Through (must use
codec PCMU/PCMA)
Re-Invite after Fax
Permits the unit to send out the re-INVITE for T.38 or Fax Pass Through if a fax tone is
Tone Detection
detected. Default is Enabled
Mode
Jitter Buffer Type
Jitter Buffer Length
Selects jitter buffer type (Fixed or Adaptive) based on network conditions.

High (initial 200ms, min 40ms, max 600ms) Note: not all vocoders can meet the
high requirement.

Medium (initial 100ms, min 20ms, max 200ms).

Low (initial 50ms, min 10ms, max 100ms).
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SRTP Mode
Selects SRTP mode to use (“Disabled”, “Enabled but not forced”, or “Enabled and
forced”). Default is Disabled.
It uses SDP Security Description to exchange key. Please refer to
SDES: http://www.apps.ietf.org/rfc/rfc4568.html
SRTP: http://www.apps.ietf.org/rfc/rfc3711.html
Crypto Life Time
Adds crypto life time header to SRTP packets. Default is Yes.
SLIC Setting
Depends on standard phone type (and location).
Caller ID Scheme
Selects the caller id scheme, for example : Bellcore/Telcordia, ETSI-FSK …
DTMF Caller ID
Defines the start and stop tones.
Polarity Reversal
Reverses the polarity upon call establishment and termination. Default is No.
Loop Current
Allows the traditional PBX used with HT802 to apply this method for signaling call
Disconnect
termination. Method initiates short voltage drop on the line when remote (VoIP) side
disconnects an active call. Default is No.
Loop Current
Configures the duration of voltage drop described in topic above. HT802 supports a
Disconnect
duration range from 100 to 10000 ms. Default value is 200.
Duration
Enable Hook Flash
Enables the FLASH button to be used for terminating calls. Default is Yes.
Hook Flash Timing
Defines the time period when the cradle is pressed (Hook Flash) to simulate FLASH. To
prevent unwanted activation of the Flash/Hold and automatic phone ring-back, adjust
this time value. HT802 supports a range from 40 to 2000 ms. Default values are 300
minimum and 1100 maximum.
On Hook Timing
Specifies the on-hook time for an on-hook event to be validated. HT802 supports a range
from 40 to 2000 ms. Default value is 400.
Gain
Adjusts the voice path volume.
• Rx is a gain level for signals transmitted by FXS
• Tx is a gain level for signals received by FXS.
Default = 0dB for both parameters. Loudest volume: +6dB Lowest volume: -6dB.
User can adjust volume of call using the Rx gain level parameter and the Tx gain level
parameter located on the FXS port configuration page.
If call volume is too low when using the FXS port (ie. the ATA is at user site), adjust
volume using the Rx gain level parameter under the FXS port configuration page.
If voice volume is too low at the other end, user may increase the far end volume using
the Tx gain level parameter under the FXS port configuration PAGE.
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Disable Line Echo
Disables the LEC will per call base. Recommended for FAX/Data calls. Default is No.
Canceller
Disable Network
Disables the NEC will per call base. Recommended for FAX/Data calls. Default is No.
Echo Suppressor
Outgoing Call
Defines the call duration limit for the outgoing calls, Default is 0 (No limit).
Duration Limit
Ring Frequency
Configures ringing frequency for your phone. 15-60 Hz, Default is 20 Hz.
Ring tones
Configures the ring tone cadence preferences. User has 10 choices. The configuration,
completed in Distinctive Ring Tones block in the same page, applies to ring tones
cadences configured here.
NAT Settings
If you plan to keep the handy tone within a private network behind a firewall, we recommend using STUN
Server. The following three settings are useful in the STUN Server scenario:
1. STUN Server (under advanced settings webpage) enter a STUN server IP (or FQDN) that you may
have, or look up a free public STUN server on the internet and enter it on this field. If using public IP,
keep this field blank.
2. Use random SIP/RTP ports (under advanced settings webpage), this setting depends on your network
settings. Generally, if you have multiple IP devices under the same network, it should be set to Yes. If
using a public IP address, set this parameter to No.
3. NAT traversal (under the FXS web page) Set this to Yes when gateway is behind firewall on a private
network.
DTMF Methods
The HT802 support the following DTMF mode:

DTMF in-audio

DTMF via RTP (RFC2833)

DTMF via SIP INFO
Set priority of DTMF methods according to your preference. This setting should be based on your server
DTMF setting.
Preferred Vocoder (Codec)
The HT802 supports following voice codecs. On FXS ports pages, choose the order of your favorite codecs:
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
PCMU/A (or G711µ/a)

G729 A/B

G723.1

G726 (16/24/32/40)

iLBC

OPUS
Configuring HT802 Through Voice Prompts
As mentioned previously, The HT802 has a built-in voice prompt menu for simple device configuration.
Please refer to “Understanding HT802 Interactive Voice Prompt Response Menu” for more information
about IVR and how to access its menu.

DHCP MODE
Select voice menu option 01 to enable HT802to use DHCP.

STATIC IP MODE
Select voice menu option 01 to enable HT802 to use STATIC IP mode, then use option 02, 03, 04,
05 to set up IP address, Subnet Mask, Gateway and DNS server respectively.

FIRMWARE SERVER IP ADDRESS
Select voice menu option 13 to configure the IP address of the firmware server.

CONFIGURATION SERVER IP ADDRESS
Select voice menu option 14 to configure the IP address of the configuration server.

UPGRADE PROTOCOL
Select the menu option 15 to choose firmware and configuration upgrade protocol between TFTP
/ HTTP.

FIRMWARE UPGRADE MODE
Select voice menu option 17 to choose firmware upgrade mode among the following three options:
1) Always check, 2) check when pre/suffix changes, and 3) never upgrade.
Register a SIP Account
The HT802 supports 2 FXS ports which can be configured with 2 SIP accounts. Please refer to the following
steps in order to register your accounts via web user interface :
1. Access your HT802 web UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings.
4. Go to FXS Port (1 or 2) pages.
5. In FXS Port tab, set the following:
a. Account Active to Yes.
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b. Primary SIP Server field with your SIP server IP address or FQDN.
c. Failover SIP Server with your Failover SIP Server IP address or FQDN. Leave empty if not
available.
d. Prefer Primary SIP Server to No or Yes depending on your configuration. Set to No if no Failover
SIP Server is defined. If “Yes”, account will register to Primary SIP Server when failover registration
expires.
e. Outbound Proxy: Set your Outbound Proxy IP Address or FQDN. Leave empty if not available.
f. SIP User ID: User account information, provided by VoIP service provider (ITSP). Usually in the
form of digit similar to phone number or actually a phone number.
g. Authenticate ID: SIP service subscriber’s Authenticate ID used for authentication. Can be identical
to or different from SIP User ID.
h. Authenticate Password: SIP service subscriber’s account password to register to SIP server of
ITSP. For security reasons, the password will field will be shown as empty.
i. Name: Any name to identify this specific user.
For more information, related to above options please refer to FXS Port Settings.
6.
Press Apply at the bottom of the page to save your configuration.
Figure 8: SIP Accounts Settings
After applying your configuration, your account will register to your SIP Server, you can verify if it has been
correctly registered with your SIP server from your HT802 web interface under Status > Port Status >
Registration (If it displays Registered, it means that your account is fully registered, otherwise it will display
Not Registered so in this case you must double check the settings or contact your provider).
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Figure 9: Account Status
Call Features
The HT802 supports all the traditional and advanced telephony features.
Table 10: HT802 Call Features
Key
Call features
Forcing a Codec (per call) *027110 (PCMU), *027111 (PCMA), *02723 (G723), *02729
*02
(G729), *0272616 (G726-r16), *0272624 (G724-r24), *0272632 (G726-r32), *0272640
(G726-r40), *027201 (iLBC), *027202 (OPUS).
*03
Disable LEC (per call) Dial “*03” +” number ”. No dial tone is played in the middle.
*16
Enable SRTP .
*17
Disable SRTP.
*30
Block Caller ID (for all subsequent calls).
*31
Send Caller ID (for all subsequent calls).
*47
Direct IP Calling. Dial “*47” + “IP address”. No dial tone is played in the middle.
*50
Disable Call Waiting (for all subsequent calls).
*51
Enable Call Waiting (for all subsequent calls).
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*67
Block Caller ID (per call). Dial “*67” +” number”. No dial tone is played in the middle.
*82
Send Caller ID (per call). Dial “*67” +” number”. No dial tone is played in the middle.
*69
Call Return Service: Dial *69 and the phone will dial the last incoming phone number
received.
*70
Disable Call Waiting (per call). Dial “*70” +” number”. No dial tone is played in the middle.
*71
Enable Call Waiting (per call). Dial “*71” +” number”. No dial tone is played in the middle.
*72
*73
Unconditional Call Forward: Dial “*72” and then the forwarding number followed by “#”. Wait
for dial tone and hang up. (Dial tone indicates successful forward)
Cancel Unconditional Call Forward. To cancel “Unconditional Call Forward”, dial “*73”, wait
for dial tone, then hang up.
*74
Enable Paging Call: Dial “*74” and then the destination phone number you want to page.
*78
Enable Do Not Disturb (DND): When enabled all incoming calls are rejected.
*79
Disable Do Not Disturb (DND): When disabled, incoming calls are accepted.
*87
Blind Transfer.
*90
*91
*92
*93
Busy Call Forward: Dial “*90” and then the forwarding number followed by “#”. Wait for dial
tone then hang up.
Cancel Busy Call Forward. To cancel “Busy Call Forward”, dial “*91”, wait for dial tone, then
hang up.
Delayed Call Forward. Dial “*92” and then the forwarding number followed by “#”. Wait for
dial tone then hang up.
Cancel Delayed Call Forward. To cancel Delayed Call Forward, dial “*93”, wait for dial tone,
then hang up.
Flash/
Toggles between active call and incoming call (call waiting tone). If not in conversation,
Hook
flash/hook will switch to a new channel for a new call.
#
Pressing pound sign will serve as Re-Dial key.
Rebooting HT802 from Remote
Press the “Reboot” button at the bottom of the configuration menu to reboot the ATA remotely. The web
browser will then display a message window to confirm that reboot is underway. Wait 30 seconds to log in
again.
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UPGRADING AND PROVISIONING
The HT802 can be upgraded via TFTP/HTTP/HTTPS by configuring the URL/IP Address for the
TFTP/HTTP/HTTPS server and selecting a download method. Configure a valid URL for TFTP or
HTTP/HTTPS; the server name can be FQDN or IP address.
Examples of valid URLs:
firmware.grandstream.com
fw.ipvideotalk.com/gs
Firmware Upgrade procedure
Please follow below steps in order to upgrade the firmware version of your HT802:
1. Access your HT802 UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings.
4. Go to Advanced Settings > Firmware Upgrade and Provisioning page, and enter the IP
address or the FQDN for the upgrade server in "Firmware Server Path" field and choose to
upgrade via TFTP or HTTP/HTTPS.
5. Make sure to check “Always Check for New Firmware”.
6. Update the change by clicking the " Apply" button at the bottom of the page. Then "Reboot" or
power cycle the HT802 to update the new firmware.
Figure 10: Firmware Upgrade Page
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Upgrading via Local Directory:
1. Download the firmware file from Grandstream web site;
2. Unzip it and copy the file in to a folder in your PC;
3. From the HT802 web interface (Advanced Settings page) you can browse your hard drive and
select the folder you previously saved the file (HT802fw.bin);
4. Click “Upload Firmware” and wait few minutes until the new program is loaded.
Note: Always check the status page to see that the program version has changed.
Upgrading via Local TFTP/HTTP Servers
For users that would like to use remote upgrading without a local TFTP/HTTP server, Grandstream offers
a NAT-friendly HTTP server. This enables users to download the latest software upgrades for their devices
via this server. Please refer to the webpage:
http://www.grandstream.com/support/firmware
Alternatively, users can download a free TFTP or HTTP server and conduct a local firmware upgrade. A
free window version TFTP server is available for download from:
http://www.solarwinds.com/products/freetools/free_tftp_server.aspx
http://tftpd32.jounin.net/.
Instructions for local firmware upgrade via TFTP:
1. Unzip the firmware files and put all of them in the root directory of the TFTP server.
2. Connect the PC running the TFTP server and the phone to the same LAN segment.
3. Launch the TFTP server and go to the File menu->Configure->Security to change the TFTP server's
default setting from "Receive Only" to "Transmit Only" for the firmware upgrade.
4. Start the TFTP server and configure the TFTP server in the phone’s web configuration interface.
5. Configure the Firmware Server Path to the IP address of the PC.
6. Save and Apply the changes and reboot the HT802.
End users can also choose to download a free HTTP server from http://httpd.apache.org/ or use
Microsoft IIS web server.
Firmware and Configuration File Prefix and Postfix
Firmware Prefix and Postfix allows device to download the firmware name with the matching Prefix and
Postfix. This makes it the possible to store all of the firmware with different version in one single directory.
Similarly, Config File Prefix and Postfix allows device to download the configuration file with the matching
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Prefix and Postfix. Thus multiple configuration files for the same device can be stored in one directory.
In addition, when the field “Check New Firmware only when F/W pre/suffix changes” is set to “Yes”, the
device will only issue firmware upgrade request if there are changes in the firmware Prefix or Postfix.
Managing Firmware and Configuration File Download
When “Automatic Upgrade” is set “Yes, every” the auto check will be done in the minute specified in this
field. If set to “daily at hour (0-23)”, Service Provider can use P193 (Auto Check Interval) to have the
devices do a daily check at the hour set in this field with either Firmware Server or Config Server. If set to
“weekly on day (0-6)” the auto check will be done in the day specified in this field. This allows the device
periodically check if there are any new changes need to be taken on a scheduled time. By defining
different intervals in P193 for different devices, Server Provider can spread the Firmware or Configuration
File download in minutes to reduce the Firmware or Provisioning Server load at any given time.
Configuration File Download
Grandstream SIP Devices can be configured via the Web Interface as well as via a Configuration File
(binary or XML) through TFTP or HTTP/HTTPS. The Config Server Path is the TFTP or HTTP/HTTPS
server path for the configuration file. It needs to be set to a valid URL, either in FQDN or IP address format.
The Config Server Path can be the same or different from the Firmware Server Path.
A configuration parameter is associated with each particular field in the web configuration page. A
parameter consists of a Capital letter P and 2 to 3 (Could be extended to 4 in the future) digit numeric
numbers. i.e., P2 is associated with the "New Password" in the Web GUI->Maintenance->Web/SSH Access
page->Admin Password. For a detailed parameter list, please refer to the corresponding firmware release
configuration template.
When the HT802 boots up or reboots, it will send a request to download a file named "cfgxxxxxxxxxxxx”
followed by a configuration XML file named "cfgxxxxxxxxxxxx.xml", where "xxxxxxxxxxxx" is the MAC
address of the phone, i.e., "cfg000b820102ab" and "cfg000b820102ab.xml". If the download of
"cfgxxxxxxxxxxxx.xml" file is not successful, the provision program will download a generic cfg.xml file. The
configuration file name should be in lower case letters.
For more details on XML provisioning, please refer to:
http://www.grandstream.com/sites/default/files/Resources/gs_provisioning_guide.pdf
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RESTORE FACTORY DEFAULT SETTINGS
Warning:
Restoring the Factory Default Settings will delete all configuration information on the phone. Please backup
or print all the settings before you restore to the factory default settings. Grandstream is not responsible for
restoring lost parameters and cannot connect your device to your VoIP service provider.
There are three (3) methods for resetting your unit:
Using the Reset Button
To reset default factory settings using the reset button please follow the steps above:
1. Unplug the Ethernet cable.
2. Locate the reset hole on the back panel of your HT802.
3. Insert a pin in this hole, and press for about 7 seconds.
4. Take out the pin. All unit settings are restored to factory settings.
Using the IVR Command
Reset default factory settings using the IVR prompt:
1. Dial “***” for voice prompt.
2. Enter “99” and wait for “reset” voice prompt.
3. Enter the encoded MAC address (Look below on how to encode MAC address).
4. Wait 15 seconds and device will automatically reboot and restore factory settings.
Encode the MAC Address
1. Locate the MAC address of the device. It is the 12-digit HEX number on the bottom of the unit.
2. Key in the MAC address. Use the following mapping:

0-9: 0-9

A: 22 (press the “2” key twice, “A” will show on the LCD)

B: 222

C: 2222

D: 33 (press the “3” key twice, “D” will show on the LCD)
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
E: 333

F: 3333
For example: if the MAC address is 000b8200e395, it should be keyed in as “0002228200333395”.
Reset from Web Interface (Reset Type)
1. Access your HT802 UI by entering its IP address in your favorite browser.
2. Enter your admin password (default: admin).
3. Press Login to access your settings.
4. Go to Basic Settings > Reset Type.
5. Press Reset button (after selecting the reset type).
 Full Reset: This will make a full reset.
 ISP Data: This will reset only the basic settings, like IP mode, PPPoE and Web port.
 VOIP Data: This will reset only the data related with a service provider like SIP server, sip user ID,
provisioning and others.
Note:
-
Factory Reset will be disabled if the “Lock keypad update” is set to “Yes”.
-
If the HT802 was previously locked by your local service provider, pressing the RESET button will
only restart the unit. The device will not return to factory default settings.
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EXPERIENCING HT802
Please visit our website: http://www.grandstream.com to receive the most up- to-date updates on firmware
releases, additional features, FAQs, documentation and news on new products.
We encourage you to browse our product related documentation, FAQs and User and Developer Forum
for answers to your general questions. If you have purchased our products through a Grandstream
Certified Partner or Reseller, please contact them directly for immediate support.
Our technical support staff is trained and ready to answer all of your questions. Contact a technical support
member or submit a trouble ticket online to receive in-depth support.
Thank you again for purchasing Grandstream analogue telephone adapter, it will be sure to bring
convenience to both your business and personal life.
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