Linksys SPA3102 Datasheet
Voice Gateway with Router
Intelligent Call Routing
Gateway Solution for VoIP
Toll Quality Voice and
Carrier-Grade Feature
The SPA3102 delivers clear,
high-quality voice
communication in diverse
network conditions. Excellent
voice quality in a demanding IP
network is consistently
achieved via our advanced
implementation of standard
voice coding algorithms. The
SPA3102 is interoperable with
common telephony equipment
like voicemail, Fax, PBX, and
interactive voice response
Large-Scale Deployment and
The SPA3102 offers all the key
features and capabilities which
service providers can provide
customized VoIP services to
their subscribers. The SPA3102
can be remotely provisioned
and supports dynamic, inservice software upgrades. A
secure profile upload saves
providers the time, expense,
and hassle of managing and
pre-configuring or reconfiguring customer premise
equipment (CPE) for
Ironclad Security
Linksys understands that
security for end users and
service providers is a
fundamental requirement for a
solid, carrier-grade telephony
service. The SPA3102 supports
secure, standard
encryption-based methods for
communication, provisioning
and servicing.
Model No.
• Service Authentication via PIN, Digest, Caller ID (Bellcore Type 1)
• Per Call Authentication and Associated Routing
Model No.
• Least Cost Routing Support
• Impedance Agnostics - 8 Settings
• Call Waiting, Cancel Call Waiting, Call Waiting Caller ID Detection (Bellcore Type 1)
• Caller ID with Name/Number (Multi-national Variants)
• Caller ID Blocking
• Call Forwarding to PSTN or VoIP Service: No answer, Busy, All
• Do Not Disturb
• Call Transfer
• Three-way Conference Calling with Local Mixing
• Message Waiting Indication - Visual and Tone Based
• Call Return
• Call Back on Busy
• Call Blocking with Toll Restriction
• Delayed Disconnect
• Distinctive Ringing - Calling and Called Number
• Off-hook Warning Tone
• Selective/Anonymous Call Rejection
• Hot line and Warm Line Calling
• Speed Dialing of 8 Numbers/Addresses
• Music on Hold
• Fax: G.711 Pass Through or Real Time Fax over IP via T.38
Product Specific (SPA3102)
• VoIP to PSTN (USA) Service Call Origination and Termination
• PSTN (USA) to VoIP Service Call Origination and Termination
• Single Stage and Two Stage Dialing
• Forward Calls to VoIP service - Selective, Authenticated, All
• Forward Calls to PSTN service - Selective, Authenticated, All
• PSTN Line Sharing with Multiple Extensions
• Automatic PSTN Fallback (Loss of Power or IP Service to Unit - with Quiescence to Normal Operations)
• Advanced Inbound and Outbound Call Routing
• Independent Configurable Dial Plans - Up to 8
• Force PSTN Disconnection
• Sequential Dialing Support
VoIP to PSTN Authentication and Routing Features
• VoIP to PSTN Gateway Enable/Disable
• VoIP Caller Auth Method (None, PIN, HTTP Digest)
• VoIP PIN Max Retry Setting
• One Stage Dialing Enable/Disable
• VoIP Caller ID Pattern Matching
• VoIP Access Allowed Caller List (No Further Authentication)
• VoIP Caller PIN and Associated Dial Plan
PSTN to VoIP Authentication and Features
• PSTN to VoIP Gateway Enable/Disable
• VoIP Caller Auth Method (None, PIN, HTTP Digest)
Model No.
• Ring Through to FXS Enable/Disable
• Ring Through Tone - Configurable
• Caller ID (Bellcore Type 1) for VoIP Service Access
• Caller ID Enable/Disable
• PIN Max Retry Settings
• Access Allowed Caller List (No Further Authentication)
• Caller PIN and Associated Dial Plan
• Least Cost Routing (via Outbound VoIP - Line1 Dial Plan)
FXO Behavior Features
• VoIP Answer Delay Timer
• PSTN Answer Delay Timer
• VoIP PIN Digit Time-Out Timer
• PSTN PIN Digit Time-Out Timer
• PSTN-to-VoIP Call Max Dur Timer
• VoIP-to PSTN Call Max Dur Timer
• PSTN Ring Through Delay Timer
• PSTN Dialing Delay Timer
• VoIP DIG Refresh Interval Timer
• PSTN Ring Time-out Timer
PSTN Disconnection Detection Features
• CPC (Removal of Tip/Ring Voltage Momentarily)
• Polarity Reversal
• Long Silence (Configurable Time Setting)
• Disconnect Tone (e.g. Reorder Tone)
• Silence Threshold
International Control Features
• FXO Port Impedance - Configurable to 16 settings
• Ring Frequency - Configurable
• SPA to PSTN and PSTN to SPA Gain Settings
• Ring Frequency - Maximum Setting
• Ring Validation Time Setting
• Tip/Ring Voltage Adjustment Setting
• Ring Indication Delay Setting
• Operational Loop Current Minimum Value
• Ring Time-out Setting
• On-Hook Speed Setting
• Ringer Impedance Setting
• Line-in-Use Voltage Setting
Package Contents
• 1 - SPA3102 Phone Adapter Unit
• 1 - Power Adapter
• 1 - RJ-45 Ethernet Cable
• 1 - RJ-11 Telephone Cable
• 1- Quick Installation Guide
Model No.
* Many specifications are programmable within a defined range or list of options. Please
see the SPA Administration Guide for details. The configuration profile is uploaded to
the SPA3102 at the time of provisioning.
Data Networking
MAC Address (IEEE 802.3)
IPv4 - Internet Protocol v4 (RFC 791) upgradeable to v6 (RFC 1883)
ARP - Address Resolution Protocol
DNS - A Record (RFC 1706), SRV Record (RFC 2782)
DHCP Client - Dynamic Host Configuration Protocol (RFC 2131)
DHCP Server - Dynamic Host Configuration Protocol (RFC 2131)
PPoE Client - Point to Point Protocol over Ethernet (RFC 2516)
ICMP - Internet Control Message Protocol (RFC792)
TCP - Transmission Control Protocol (RFC793)
UDP - User Datagram Protocol (RFC768)
RTP - Real Time Protocol (RFC 1889) (RFC 1890)
RTCP - Real Time Control Protocol (RFC 1889)
DiffServ (RFC 2475), Type of Service - TOS (RFC 791/1349)
VLAN Tagging - 802.1p
SNTP - Simple Network Time Protocol (RFC 2030)
Upload Data Rate Limiting - Static and Automatic
QoS - Voice Packet Prioritization over Other Packet Types
Router or Bridge Mode of Operation
MAC Address Cloning
Port Forwarding
Voice Gateway
SIPv2: Session Initiation Protocol v2 (RFC 3261, 3262, 3263, 3264)
SIP Proxy Redundancy - Dynamic via DNS SRV, A Records
Re-registration with Primary SIP Proxy Server
SIP Support in Network Address Translation Networks - NAT (incl. STUN)
Secure (Encrypted) Calling via Pre-Standard Implementation of Secure RTP
Codec Name Assignment
Voice Algorithms
G.711 (A-law and µ-law)
G.726 (16/24/32/40 kbps)
G.729 A
G.723.1 (6.3 kbps, 5.3 kbps)
Dynamic Payload
Adjustable Audio Frames per Packet
Fax Capability
Fax Tone Detection and Pass-Through (Using G.711)
Fax Pass-Though - Using G.711
DTMF: In-band & Out-of-band (RFC 2833) (SIP Info)
Flexible Dial Plan Support with Interdigit Timers and IP Dialing
Call Progress Tone Generation
Jitter Buffer - Adaptive
Frame Loss Concealment
Full Duplex Audio
Echo Cancellation (G.165/G.168)
VAD - Voice Activity Detection with Silence Suppression
Attenuation / Gain Adjustments
Flash Hook Timer
MWI - Message Waiting Indicator Tones
VMWI - Visual Message Waiting Indicator via FSK
Polarity Control
Hook Flash Event Signaling
Caller ID Generation (Name & Number) - Bellcore, DTMF, ETSI
Music on Hold Client
Streaming Audio Server - up to 10 sessions
Model No.
Password Protected System Reset to Factory Default
Password Protected Admin and User Access Authority
HTTPS with Factory Installed Client Certificate
HTTP Digest - Encrypted Authentication via MD5 (RFC 1321)
Up to 256-bit AES Encryption
Administration &
Web Browser Administration & Configuration via Integrated Web Server
Telephone Key Pad Configuration with Interactive Voice Prompts
Automated Provisioning & Upgrade via HTTP, TFTP
Asynchronous Notification of Upgrade Availability via SIP NOTIFY
Non-intrusive, In-Service Upgrades
Report Generation & Event Logging
Stats in BYE Message
Syslog & Debug Server Records - Per Line Configurable
Per Line and Purpose Configurable Syslog and Debug Options
Physical Interfaces:
2 100baseT RJ-45 Ethernet Port (IEEE 802.3) -- 1 WAN, 1 LAN
1 RJ-11 FXS Phone Ports - For Analog Circuit Telephone Device (Tip/Ring)
1 RJ-11 FXO Phone Ports - For a Telco or PBX Connection
Ring Voltage: 40-55 VRMS Configurable
Subscriber Line
Interface Circuit
Ring Frequency: 10 Hz - 40 Hz
Ring Waveform: Trapezoidal and Sinusoidal
Maximum Ringer Load: 3 REN
On-hook/off-hook Characteristics:
On-hook voltage (tip/ring): -50 V NOMINAL
Off-hook current: 25 mA min
Terminating Impedance: 8 Configurable Settings including
North America 600 ohms, European CTR21
Reg. Compliance:
FCC (Part 15 Class B), CE, ICES-003, A-Tick Certification, RoHS
Power Supply:
DC Input Voltage: +5 VDC at 2.0 A Max.
Power Consumption: 5 Watts
Switching Type (100-240v) Automatic
Power Adapter: 100-240v - 50-60Hz (26-34VA) AC Input
Indicator Lights/LED:
Power, Ethernet (WAN), Phone 1, Phone 2
Quick Installation, User, and Configuration Guides
are downloaded from
Administration Guide - Service Providers Only
Provisioning Guide - Service Providers Only
Unit Weight
Operating Temp.
Storage Temp.
Operating Humidity
3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm)
5.11 oz. (0.145 kg)
32ºF to 113º F (0ºC to 45º C)
-13ºF to 185º F (-25ºC to 85º C)
10 to 90% Non-condensing, operating and non-operating
Model No.
The SPA3102 features the ability to connect standard telephones and fax machines to
IP-based data networks with the additional benefit of an integrated connection for
legacy telephone network “hop-on, hop-off” applications. SPA3102 users will be able
to leverage their broadband phone service more than ever by automatically routing
local calls from mobile phones and land lines over to VoIP service providers and vice
versa. If power is lost to the unit or Internet service is down, calls can be redirected to a
traditional carrier via the FXO interface.
A user calling from a mobile phone or land line will be able to reduce and even
eliminate international and long distance telephone charges by first calling their
SPA3102 via a local telephone number. The advanced authentication and call routing
intelligence programmed into the SPA3102 will route the call via the Internet to the far
end destination. In addition, when using the SPA3102 at the far end, VoIP calls placed
to that location can be either answered or further processed and routed on as a local
call to any legacy land line or mobile phone.
The SPA3102 supports one RJ-11 POTS (Plain Old Telephone Service) FXS port to
connect an existing analog phone or fax machine. The SPA3102 also supports one
PSTN FXO port to connect to a Telco or PBX circuit. The SPA3102 includes 2 100BaseT
RJ-45 Ethernet interfaces to connect to a home or office LAN, as well as an Ethernet
connection to a broadband modem or router. The SPA3102 FXS and FXO lines can be
independently configured via software controlled by the service provider or the end
Installed by the end user and remotely provisioned, configured and maintained by the
service provider, each SPA3102 converts voice traffic into data packets for transmission
over an IP network. Compact in design, the SPA3102 can be used in consumer and
business VoIP service offerings including a full-featured IP Centrex environment. The
SPA3102 uses international standards for voice and data networking for reliable voice
and fax operation.
Linksys Phone Adapter Comparison Chart
SPA Model
Notes: The SPA2102/2100 and SPA3102 support up to 2 sessions using G.729. The SPA1001 and
SPA3000 support 1 G.729 session.
A Division of Cisco Systems, Inc.
121 Theory
Irvine, CA 92617 USA
Linksys products are available in more than
50 countries, supported by 12 Linksys
Regional Offices throughout the world. For
a complete list of local Linksys Sales and
Technical Support contacts, visit our
Worldwide Web Site at
Specifications are subject to change
without notice. Linksys is a registered
trademark or trademark of Cisco Systems,
Inc. and/or its affiliates in the U.S. and
certain other countries. Copyright © 2006
Cisco Systems, Inc. All rights reserved.
Other brands and product names are
trademarks or registered trademarks of
their respective holders.
SPA3102/3000 supports 2 incoming services (proxy registrations) and an unlimited number
of outgoing VoIP services.
SPA3102-SP-DS-60413NC RR
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