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TECHNICAL ADVISORY BULLETIN

Date: January 1997 Issue: TAB003–PLS

Software Enhancements For The

DXP Plus Digital Communications System

This bulletin discusses software enhancements and feature additions to the DXP Plus digital communications system that are available with software release 11A and later.

The software enhancements and additions are as follows:

•

SMDA Report on Answer,

•

SMDA Metering Pulse Totals,

•

ANI / DNIS Enhancements,

•

End to End Signaling,

•

ARS Access per Trunk Group,

•

A-Law DXP Tones,

•

Inhibit Message Wait Stutter Dialtone,

•

Impression Telephone Support.

NOTE: It is always a good practice to save the data base for backup purposes before you up-grade the system software revision.

The pages of this TAB003–PLS present the 11A revision information as separate sheets that, if you wish, you can insert in your system manuals.

Printed in U.S.A.

This manual has been developed by Comdial Corporation (the “Company”) and is intended for the use of its customers and service personnel. The information in this manual is subject to change without notice. While every effort has been made to eliminate errors, the Company disclaims liability for any difficulties arising for the interpretation of the information contained herein.

The information contained herein does not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired, or should particular problems arise which are not covered sufficiently for the purchaser’s purposes contact, Comdial, Inside Sales Department, P.O. Box

DXP Plus General Description GCA40–130

2

Telephone Features

2.1 Using The Comdial Telephones

The DXP Plus system supports many of Comdial’s proprietary telephones as well as industry-standard telephones. The following list details the various telephone models.

• DigiTech Telephones

» 7700S —LCD Speakerphone

» 7714X —Multiline Telephone

» 7714S —Multiline Speakerphone

» 7701X —Single Line Proprietary Telephone

» DD32X —32-Button DSS/BLF Console

• Impact Telephones

» 8024S —24 Line LCD Speakerphone

» 8124S —24 Line Speakerphone

» 8012S —12 Line LCD Speakerphone

» 8112S —12 Line Speakerphone

» 8112N —Multiline Proprietary Telephone

» 8101N —Single Line Proprietary Telephone

» IB64X —64-Button DSS/BLF Console

• ExecuTech Telephones

» 6620E —23-Line Monitor Telephone

» 6620T —23-Line Speakerphone

» 6614E —22-Line Monitor Telephone

» 6600E —17-Line LCD Speakerphone

» 6700S —12-Line LCD Speakerphone

» 6701X —Single Line Proprietary Telephone

» 6706X —6-Line Monitor Telephone

Impression Telephones

2022S —22-Line LCD Speakerphone

2122S —22-Line Speakerphone

2122X —22-Line Monitor Telephone

2101N —Single Line Proprietary Telephone

DU32X —32-Button DSS / BLF Console

6714S —14-Line Speakerphone

6714X —14-Line Monitor Speakerphone

6614T —22-Line Speakerphone

DB70 —70-Button DSS / BLF Console

DB32S —32-Button DSS / BLF Console

EB32X —32-Button DSS / BLF Console

TAB003-PLS, page 3

Telephone Features – 3

GCA40–130 DXP Plus General Description

2.2 Understanding The Telephone Features

The DXP Plus supports the following telephone features on both analog and digital proprietary telephones. Some of these features are system-wide and others are specific to individual stations.

Alphanumeric Display

— Displays time, day, and date

—

—

Keeps you apprised of the status of your telephone

Provides programming prompts

Auxiliary Jack (used only with Impact and DigiTech LCD speakerphone)

— Allows you to use your telephone privately and handsfree by allowing you to plug in and use a headset

— Allows you to plug in a tape recorder

—

—

Allows you to plug in an external ringer

Allows addition of a paging speaker

Button Query

— Allows you to see the function of a programmed button on your LCD screen

Hold Button

— Places a line on hold

—

—

Stores pauses in number sequences while programming

Allows you to scroll through multiple held calls on display

Interactive Buttons

— Provide quick and easy access to system and call processing features

— Provide straightforward button programming without dialing codes

(the interactive buttons themselves, however, are not programmable)

Intercom Button

— Selects an intercom line

— Initiates many of the features of the telephone

Message Waiting Light

— Tells you there is a message waiting for you

Mute Button

— Keeps the person on the line from hearing your conversation

Programmable Buttons

— Allow you to program your telephone for automatic dialing functions

— Allow you to program your telephone for Direct Station Selection (DSS)

—

—

Show which lines and intercoms are either in use or on hold

Allow you to store frequently used feature codes at unused buttons

TAB003-PLS, page 4

4 – Telephone Features

DXP Plus General Description

2.6 Using Impression Telephones

DXP Plus software 11A supports Comdial Impression telephones.

GCA40–130

I

1

4

A C

2

L

D

M O

X

O

OLD A

C M

I CM

2022S (22-Line LCD Speakerphone) unisyn05.cdr

I

1

4

A C

2

L

D

M O

X

O

OLD A

C M

I CM

2122S (22-Line Speakerphone)

2122X (22-Line Monitor Telephone) unisyn01.cdr

R unisyn09.cdr

2101N (Single Line Proprietary Telephone) DU32X (32-Button DSS/BLF Console) unisyn11.cdr

TAB003-PLS, page 5

Telephone Features – 11A

GCA40–130

9.08"

DXP Plus General Description

4.78"

3.94"

8.90"

UNIS029

1.13"

TAB003-PLS, page 6

11B – Telephone Features

DXP Plus General Description GCA40–130

Speaker

Mute Button

T/C Button

SPKR Button

Message

Waiting Light

Hold Button

TAP Button

ITCM Button

LCD Display

Interactive Buttons

I

1

4

A C

2

L

D

M O

X

O

OLD A

C M

I CM

Feature Buttons,

Line Buttons, and

DSS Buttons

Volume Control

cajs110

Microphone Opening

TAB003-PLS, page 7

Telephone Features – 11C

DXP Plus General Description GCA40–130

6

Understanding The Features

6.1 DXP Plus Features List

This list details all of the features available on the DXP Plus. Use it as a pre-installation check list.

Abandoned Hold Release

Adjunct Feature Module

Access Denied

Account Code Button

Account Codes With Positive

Verification

A-Law DXP Tones**

All Call Paging

Allow Ringer Off (Ringer Volume Off)

Alpha-Numeric Calling Party and Line

Display

Alternate Attendant

ANI / DNIS Enhancement**

Answer Button

Area Paging Interface

ARS Access per Trunk Group**

ARS Delayed Dialtone**

Attendant Position

Attendant Position, PC

Authorization Code

Automatic Dialing

Automatic Hold - Intercom To

Intercom/Line

Automatic Hold - Line To Intercom

Automatic Hold - Line To Line

Automatic Pause Insertion

Automatic Privacy

Automatic Number Identification (ANI)

Automatic Redial

Automatic Reports

Automatic Route Selection

Automatic Station Relocation

Auxiliary Equipment Interface

Auxiliary Station Ringer Interface

Background Music*

Battery Backup (Chassis, Cable, and

Batteries)

Battery Backup Interface

Block Programming

Busy Button Inquiry

Busy On SOHVA

Button Query

Call Announce Beeps

Call Announce With Handsfree

Answer-back

Call Costing and SMDA Reports

Call Forward - All Or Personal

Call Forward- Immediate

Call Forward - Busy Or RNA, All Or

Personal

Call Forward Outside System

Call Park

Call Park Recall

Call Pick-Up - Directed

Call Pick-Up - Group

Call Pick-Up - System

Call Transfer - Screened

Call Transfer - Unscreened

With Automatic Camp On

Call Waiting Tone

Caller ID

Caller ID–RNA

Camp-On With Automatic Call Back

Camp-On - Call Waiting

Camp-On - No Answer

Clear Major Alarm Ring

Central Message Desk

Central Processor Switched Data Port

Configuration

Centrex Compatible

Common Audible Ringer Interface

Conferencing - Multiline

Conference Advisory Tone

Console Support

Console-Less Operation

Communications Card Support

Consultation Hold

Copy Model

Data Base Program Storage Via PC

Interface

Data Base Programming From Main

Station (Limited)

Data Base Programming With Personal

Computer And Visual Man Machine

Interface (VMMI) Software

Day One and Day Two Ringing

Default Busy/RNA Call Forward

Default Functional Programming

Delayed Ringing

Dial 0 for System Attendant

Dial Plus Interdigit Time

Digital Voice Announce

Dialed Number Identification Service

(DNIS)

Digital Wireless Telephone Support

Direct Inward Dialing (DID)

Direct Inward System Access (DISA)

Direct Line Access by Station

Direct Line Group Selection

Directed Station Hold

Disconnect Supervision

Discriminating Ringing

Do Not Disturb

Do Not Disturb Inhibit

Do Not Disturb Override

DSS Status Button

Dynamic Save Button

E1 Digital Carrier Transmission Option

E&M tie Line support

End to End DTMF Signaling

End to End Signaling on Intercom

End to End Signaling on Lines

Enhanced LCD Display

Exclusive Hold

TAB003-PLS, page 9

Understanding The Features – 45

GCA40–130 DXP Plus General Description

Existing Comdial Telephone Support

ExecuMail Integration

External Paging Interface

Feature Inhibit

Feature Renumbering

Flexible Ringing Assignment

Flexible Ringing Assignment Of The External

Paging Port

Flexible Station Numbering Plan

Ground Start Lines

Group Intercoms

Handsfree Answer Inhibit

Handset Volume Control

Headset Capability

Hold

Hold, Exclusive

Hold Queuing

Hold Time Reporting

Hot Transfer

I Hold and I Use Indications

Idle Line Preference

Idle Line Priority

Industry Standard Telephone Support

Inhibit Message Wait Stutter Dialtone**

ISDN-PRI Interface

IST Hold Confirmation

IST Offhook Treated As Busy

IST Message Wait Retrieval Access Code

IST Ring Frequency

IST Ring Patterns

Interactive Button Support

Intercom Call Progress Tones

Intercom Hunt List

Intercom Interdigit Dialing Time-out

Intercom Time-out

Intercom Number

Key/Hybrid Configuration

Last Number Redial

Line Access Restriction

Line Answer From Any Station

Line Appearance, Enhanced

Line Groups

Line Group Access

Line Names

Line Out Softkey Option

Line Queuing

Liquid Crystal Display (LCD) Messaging

Liquid Crystal Display (LCD) Support

Location Code

Lock Button

Manual Exclusion

Mark Problem Line

Master Clear

Maximum Call Duration

Meet-Me Answer Page

Memory Retention Without Batteries

Message Deposit

Message Waiting

Mnemonic Programming

Modem Support

Modify Digits Table

Multiple Attendant Positions

Multipurpose Line Board

Music Interface*

Music On Hold*

Mute

Names (Stations And Lines)

Night Service Automatic Switching

Night Transfer (Of Ringing)

Off-Premise Extension (OPX)

On-Hook Dialing

Operator Station

Originating Denied

Out Dial Delay Time

Password Protection

Pause Time

PBX/Centrex/Central Office Compatible

Personal Intercom Number

Paging Access

Periodic Line Tone

Personal Intercom Number Preference

Personalized Ringing Tone

Pooled Line Access

Power Failure Transfer

Preselection Prime Line

Printer Interface

Privacy

Privacy Release

Private Lines

Program Printout

Programmable Button Flexibility

Programming Port

Pulse/Tone Switchable

Quick Transfer

Remote Programming and Diagnostics

Remote Station Disable

Release Button

Reminder Alert

Restrict ARS Hookflash (Automatic Route

Selection, Hookflash Restriction)

Restricted Dial Error Tone

Response Messaging

Ring Back On Transfer

Ring Back Tone

Ring No Answer Call Forward

Ring On Busy

Ringing Line Preference

Secure Account Code Display

Save Button Dial Storage

Saved Number Redial

Self Diagnostics

Serial Data Port

Service Observing

Shift Button

Silent Mode Button

Single-Line Proprietary Telephone Support

SMDA Metering Pulse Tones**

SMDA Report On Answer**

SMDA Reports

SOHVA Beeps (SOHVA Tone Bursts)

Speakerphone Support

Split Button

Square/Non-Square Configuration

Station Hunting

Station Class Of Service

Station Message Detail Accounting (SMDA)

Station Message Detail Recording (SMDR)

Station Monitoring with DSS Call Pickup

Station Names

Station Speed Dial

Subdued Off-Hook Voice Announce

Subdued Off-Hook Voice Announce Groups

Subdued Ringing

Synchronized Ringing

System Clock

System Speed Dial

System Status Reports

T1 Digital Carrier Transmission Option

Tap (Flash)/Recall

Telephony Services Application Programming

Interface (TSAPI) Support

Through Dialing

Tie Lines

Time And Date

Timed And Immediate Recall

Toll Restriction

Toll Restriction Pause Entries

Tone or Voice Signaling on Internal Calls

Transfer/Conference Button

Transfer Ring Cadence

Unsupervised Conference

Voice Announce Blocking

Voice Mail Integration Digits

Manual Reset Ring Back On Busy Zone Paging

*The system is equipped with two inputs for separate customer-supplied music sources.

**DXP Plus 11A features.

TAB003-PLS, page 10

46 – Understanding The Features

GCA40–130 DXP Plus General Description

A-Law DXP Plus Tones

Software 11A supports the call progress tone plan for the A-Law DXP Plus available for South Africa.

ANI / DNIS Enhancements

Software 11A enhances the DNIS feature by adding an option to support the DTMF ANI / DNIS with two information digits. When programmers enable this feature option, the format of the digit string changes from the ✳ANI✳DNIS✳ format to a format that includes a two-digit code that indicates the presence of

ANI digits (I ANI DNIS where I equals the two-digit string). The ANI digit string indicates the calling party’s telephone number. The DNIS digit string identifies the call destination station.

48A – Understanding The Features

TAB003-PLS, page 11

DXP Plus General Description GCA40–130

ARS Access Per Trunk Group

DXP Plus software 11A allows the access code for any line group in the system to provide access to ARS.

By default, the line group 1 access code will provide ARS access when ARS is enabled. You can program this item on a line group parameter.

ARS Delayed Dialtone

DXP Plus software 11A adds a delay option for ARS Dialtone (Dial Tone 4). When the telephone user selects an outside line, there is a 1 second delay before dialtone is presented to the caller. The dialtone frequency is the same as the system intercom dialtone, but the delay gives the impression a “fresh” dialtone for outbound dialing.

TAB003-PLS, page 13

Understanding The Features – 49A

GCA70–130 DXP Plus General Description

End-to-End Signaling On Intercom

After establishing an intercom call, the system can continue to send and receive dialing signals (DTMF tones) through the intercom path. Use station parameter programming to set the extension to receive

DTMF digits. End-to-End signaling can be enabled on any station port and is useful when connecting voice mail systems or door boxes.

76A – Understanding The Features

TAB003-PLS, page 15

DXP Plus General Description GCA40–130

Inhibit Message Wait Stutter Dialtone

Software 11A allows you to enable or disable the stutter intercom dialtone received at a station to indicate a message waiting. You can program this item as a station COS parameter.

TAB003-PLS, page 17

Understanding The Features – 83A

DXP Plus General Description GCA40–130

ISDN–PRI Interface

Integrated Services Digital Network (ISDN) provides integrated voice and data over a common telephone company facility. There are two methods of ISDN access currently available: ISDN–BRI (basic) and

ISDN–PRI (primary). ISDN–BRI provides a way for subscribers to get digital service from the telephone company supplier for two telephones or a telephone and a data device over one special pair of wires.

ISDN–PRI provides a way for subscribers to get digital service from the telephone company supplier for

24 lines over two special pairs of wires. This latter method is the concern of this publication.

ISDN–PRI access directly connects a multiple-station, digital communications system to the telephone company’s ISDN network through a single high-speed line. This high-speed line is commonly known as

T1 in North America and consists of 24 digitized channels. ISDN–PRI access consists of a grouping of 23 voice channels (B–channels) and one signaling or control channel (D–channel). B–channels are clear channels suitable for voice or data transmission while the D–channel is a packet-switched link for call set-up and signaling. When you use ISDN–PRI access with T1, one of the T1 channels serves as the signaling channel. This arrangement is sometimes referred to as 23B+D ISDN service.

The DXPRI is a circuit card that you install on a revision B or later DXPT1 line board with special-purpose firmware to provide ISDN–PRI access to the digital communications system. The DXPRI card handles the D–channel signaling protocol and passes messages to the DXPT1 board. A single

DXPRI card can control multiple DXPT1 boards when you tie the boards together through board programming action. This arrangement (known as NFAS or Network Facility Associated Signaling) allows the system to derive 24 B–channels from all boards except the one where installers have added the the DXPRI card. When installers do this, the DXPT1/DXPRI combination that provides the control is designated as DXPT1–PRI; and the boards being controlled are designated as DXPT1–NFAS. The NFAS boards do not require a DXPRI card as they are slaves to the master –PRI board. Throughout the remainder of this publication, the term T1/PRI means a T1 board specifically configured for ISDN–PRI operation be it either a DXPT1–PRI or a DXPT1–NFAS board.

Since central office protocols differ, the DXPRI card supports several protocol arrangements and provides interface support for several signaling types. The programmer and the end user can select the interface support that the system needs for a particular application. The support they choose determines how the telephone company treats the signal.

The DXPRI card provides a calling number identification feature that provides the following services: delivery of network provided calling numbers, calling line identification presentation (CLIP), or automatic number identification (ANI). On originated calls, the system automatically provides the calling number if available; otherwise, it provides the default directory number. For incoming calls, the called station displays the calling number if available; otherwise, the display shows information determined by station class of service programming. The system programmer can customize the caller ID parameters for outgoing calls as site requirements dictate.

Introducing The T1/PRI Line Board

The revision B or later DXPT1 board with special-purpose firmware serves as host for the DXPRI card and gives gives the digital communications system the capability to handle up to 24 channels of voice and/or data transmissions over a single four-wire cable using multiplexing techniques. The DXPT1 board includes a customer service unit (CSU) to eliminate the need for an external CSU.

Defining T1/PRI Operation

T1/PRI is the digital two-way transmission of telecommunications over a single high-speed circuit. Up to

24 separate voice or data transmissions form digital pulses that are transferred at the rate of 1.544 million bits per second (Mbps) over the T1/PRI trunk. At the receiving end, the digital pulses are decoded into 24 separate circuits.

TAB003-PLS, page 19

Understanding The Features – 85A

GCA40–130 DXP Plus General Description

Pulse characteristics such as repetition rate, pulse width, pulse amplitude, and average ones density ((ratio of one (1) bits to zero (0) bits)) are as specified by digital signal level 1 (DS-1) described in American

National Standards Institute Specification, ANSI T1.403-1989.

Detailing Where You Can Install T1/PRI Boards and Its Supporting Needs

Since the DXP Plus supports a maximum of 240 lines, and each T1/PRI board handles up to 24 channels, you can install up to 10 boards in the DXP Plus system. You can install these 10 boards in any available universal board slot in the main or expansion cabinets. Of course, any other line boards that you install, such as loop start, DID or multipurpose, reduce the number of lines available for T1/PRI service and thus reduces the number of T1/PRI boards you can install.

Whenever you install one or more boards, and the DXP Plus is receiving its timing signals from an external source (the usual case), you must install one synchronization card (DXOPT–SYN) on the services board. This means when you connect the system to central office (CO) lines, you must include a synchronization card, and the DXP Plus clock must be controlled by CO signaling.

CAUTION

For operation with the DXP Plus, the T1/PRI board must be Revision B or higher and have special-purpose firmware installed.

TAB003-PLS, page 20

85B – Understanding The Features

DXP Plus General Description GCA40–130

SMDA Metering Pulse Totals

DXP Plus software 11A enhances the SMDA Metering Pulse Totals by adding a third option to the

Report Option field. You can now select the option “Meter Pulses” as an alternative to “Call Cost” or

“Hold Time” on all reports.

Metering Pulse is a method used in countries other than the United States to determine call duration and cost. Therefore, if you are installing the DXP Plus system in a country that uses E1 lines, selecting this option will allow the DXP Plus to cost calls by monitoring the metering pulses originating from the central office.

SMDA Report On Answer

The SMDA Report On Answer feature enhancement for DXP 11A adds the option to create a report entry only for answered outbound calls. When this feature is enabled, outbound calls initiated on lines which provide answer supervision will not generate a report unless the call is answered. Call cost and time are based on call duration after answer.

TAB003-PLS, page 21

Understanding The Features – 99A