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Primary Rate Interface (PRI) and T1 Feature

System Programming

Clock Synchronization  

Programmable by

System Manager

Mode

All

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity 100D, 100R INA, and
100 DCD module
3i, Incoming Trunks: BRI Options

Factory Setting

Primary clock: the first 100D/100R module in the control unit
carrier

Valid Entries Primary, Secondary, Tertiary, Loop/Local
Inspect No
Copy Option

No

Console Procedure

Specify modules that provide primary, secondary, and tertiary clock synchronization and source of clock synchronization; also activate/deactivate clock:

LinesTrunks More ClockSync Primary
Dial slot no. (1-17)
Enter Dial port no. or select source of synchronization Enter Secondary Dial slot no. (1-17) Enter Dial port no. or select source of synchronization Enter Tertiary Dial slot no. (1-17) Enter Dial port no. or select source of synchronization Enter Back Back

DS1 Facilities

 
Type of DS1 Facility  

Programmable by

System Manager

Mode

All

Idle Condition

100R module idle

Planning Form

2c, System Numbering: Line/Trunk Jacks
3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and
100 DCD module)

Factory Setting

T1, See Switched 56 Data Signaling Options.

Valid Entries T1, PRI
Inspect Yes
Copy Option

No

Procedure

Specify type of facility connected to 100D, 100R INA, or 100 DCD module:

To select PRI:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type PRI Enter Back Back Back Back

To select T1 All Ground, All Loop, or All Unequip:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter Type T1 Enter Select type of emulation Enter
Back Back Back Back

To select T1 Ground-Start, Loop-Start, All Tie, or Unequip:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter
Select type of emulation Enter
Dial channel no. Enter Back Back Back Back

To select T1 All DID:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter
or More All DID Enter
Back Back Back Back

To select T1 DID:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter
or More DID Enter Dial channel no. Enter Back Back Back Back

To select T1 All Tie:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter All TIE Enter
TIE-PBX, Toll,
or S56 Enter Dial channel no.
Enter Back Back Back Back

To select T1 Tie:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter TIE Enter TIE-PBX, Toll,
or S56 Enter Dial channel no. Enter Back Back
Back Back

To select T1 All Switched 56 Data:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Type T1 Enter
or More ALL S56 Data Enter
Select Direction , Intype , Outtype , AnsSupv , Disconnect , Inmode , or Outmode Program options Enter Back
Back Back Back

To select T1 Switched 56 Data and program Channel Signaling:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter Type T1 Enter or More S56 Data Enter
Dial channel no. Enter Select Direction , Intype , Outtype , AnsSupv , Disconnect , Inmode , or Outmode Program options Enter
Back Back Back Back

Switched 56 Data Signaling Options

Option

Factory Setting

Range

Direction

Two-Way

Two-Way, Outgoing, Incoming

Intype

Wink-Route by
Dial Plant

Wink-Route by Dial Plan,
Delay-Route by Dial Plan
Auto-Route by Line Appearance

Outtype

Wink

Wink, Delay, Auto

Answer Supervision

300 ms

200-4,800 ms (increments of 20 ms)

Disconnect

300 ms

200-4,800 ms (increments of 20 ms)

Inmode

Touch Tone

Touch Tone, Rotary

Outmode

Touch Tone

Touch Tone, Rotary

Frame Format  

Programmable by

System Manager

Mode

All

Idle Condition

100D module idle

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

D4-compatible

Valid Entries D4, ESF
Inspect No
Copy Option

No

Procedure

Specify framing format for 100D, 100R INA, or 100 DCD module:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
FrameFormat
Select D4-Compatible or Extended Superframe Enter Back Back

Zero Code Suppression  

Programmable by

System Manager

Mode

All

Idle Condition

100D module idle

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

AMI-ZCS

Valid Entries AMI-ZCS, B8ZS
Inspect No
Copy Option

No

Procedure

Specify line coding for 100D, 100R INA, or 100 DCD module:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Suppression AMI-ZCS
or B8ZS Enter Back Back

Line Compensation  

Programmable by

System Manager

Mode

All

Idle Condition

100R module idle

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

1 (0.6 dB loss)

Valid Entries 1 to 5
Inspect No
Copy Option

No

Procedure

Specify line compensation between 100D, 100R INA, or 100 DCD module and channel service unit (CSU) or far end:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter
Line Comp Drop
Dial line compensation value (1-5) Enter
Back Back

Channel Service Unit  

Programmable by

System Manager

Mode

All

Idle Condition

100R INA and 100 DCD module idle

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

Foreign Exchange

Valid Entries Foreign Exchange, Special Access
Inspect No
Copy Option

No

Procedure

Specify type of CSU equipment provided by central office:

LinesTrunks LS/GS/DS1 Dial slot no. (1-17) Enter ChannelUnit Foreign Exchange or Special Access
Enter Back Back

PRI Facilities
 

If you are adding PRI facilities to an existing system, certain values must be set correctly. To inspect or change these values, see. Do not start these procedures until you have checked the following:

  • Type of DS1 Facility must be set to PRI.
  • Frame format must be specified correctly.
  • Zero code suppression must be specified correctly.
  • Clock synchronization source must be set to loop (derived from the T1 line).

The settings for frame format and zero code suppression must be consistent with the options selected when the PRI connection was ordered.

If you are using ARS in connection with PRI, make sure you select voice, data, or voice and data, as appropriate, when you perform the ARS "Voice and/or Data Routing".

Switch Type  

Programmable by

System Manager

Mode

Hybrid/PBX

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

4ESS

Valid Entries Not applicable
Inspect Yes
Copy Option

No

Procedure

Specify the type of switch:

LinesTrunks PRI SwitchType Dial slot no. (1-17) Enter Specify switch type Enter Back Back

Telephone Number  

Programmable by

System Manager

Mode

Hybrid/PBX, Key

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100D CD module)

Factory Setting

No digits

Valid Entries Up to 12 digits (any combination of 0 to 9)
Inspect No
Copy Option

No

Procedure

Assign telephone numbers to PRI lines:

LinesTrunks PRI PhoneNumber Dial trunk no. Enter
Drop Dial telephone no. (up to 12 digits; 0-9) Enter Back
Back

B-Channel Groups  

Programmable by

System Manager

Mode

Hybrid/PBX, Key

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

Not applicable

Valid Entries Group numbers (1 to 80)
Inspect Yes
Copy Option

No

Procedure

Assign B-channels to group and assign PRI lines to B-channel groups:

To program a single-line/trunk:

LinesTrunks PRI B-ChannlGrp B Channels
Dial group no. (1-80) Enter Dial B-channel slot and port nos. Enter Lines Dial group no. Enter Entry Mode Dial line/trunk no. Enter Back Back Back

To program a block of lines/trunks:

LinesTrunks PRI B-ChannlGrp B Channels
Dial group no. (1-80) Enter Dial B-channel slot and port no. Enter Lines Dial group no. Enter
Select specific lines/trunks Toggle LED On/Off
Back Back Back

Network Service  

Programmable by

System Manager

Mode

Hybrid/PBX, Key

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

Not applicable

Valid Entries AT&T Toll, 5ESS Local, MCI Toll, Miscellaneous,
DMS-100 Local, LEGEND UDP
Inspect Yes
Copy Option

No

Procedure

Specify type of network service for each B-channel group:

LinesTrunks PRI B-ChannlGrp NetworkServ
Dial group no. Enter Specify network service (AT&T Toll, 5ESS Local, MCI Toll, Miscellaneous, DMS-100, Local, Legend UDP) Enter Back Back Back Back

Copy Telephone Number to Send  

Programmable by

System Manager

Mode

Hybrid/PBX, Key

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

Do Not Copy

Valid Entries Do Not Copy, Copy
Inspect No
Copy Option

No

Procedure

Specify whether telephone number to send to network for outgoing calls should be copied from line telephone number:

LinesTrunks PRI B ChannlGrp Copy Number
Dial group no. Enter Specify copy or no copy Enter
Back Back Back

Telephone Number to Send  

Programmable by

System Manager

Mode

All

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

No digits are assigned

Valid Entries Up to 12 digits (any combination of 0 to 9)
Inspect No
Copy Option

No

Procedure

Specify telephone number to send to network for outgoing calls on PRI lines:

LinesTrunks PRI NumbrToSend Specify type of no. Enter Drop Dial base no. Enter Dial line no. Enter
Drop Dial telephone no. (up to 12 digits; 0-9) Enter Back
Back

Test Telephone Number  

Programmable by

System Manager

Mode

Hybrid/PBX, Key

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

Not applicable

Valid Entries Telephone number of up to 12 digits
Inspect No
Copy Option

No

Procedure

Assign test line telephone number for each 100D, 100R INA, or 100 DCD module:

LinesTrunks PRI Test TelNum Dial slot no. (1-17) Enter Drop Dial telephone no. (up to 12 digits; 0-9) Enter
Back Back

Timers and Counters  

Programmable by

System Manager

Mode

All

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

See the Table in the following

Valid Entries See the Table in the following
Inspect No
Copy Option

No

Procedure

Set timer and counter thresholds for each 100D, 100R INA, or 100 DCD module:

LinesTrunks PRI Protocol Timers
Dial slot no. (1-17) Enter Select timer/counter Drop
Dial no. of ms/octets/and so on
Enter Back Back Back Back

 

Timer/Counter

Purpose

Factory Setting

Valid Range

T200 Timer

Maximum response time

1 second

1,000 to 3,000 ms

T203 Timer

Maximum time

30 seconds

1 to 60 seconds

N200 Counter

Maximum transmissions

3 transmissions

1 to 5 transmissions

N201 Counter

Maximum octets

260 octets

16 to 260 octets

K Counter

Maximum outstanding

I-frames

7 frames

1 to 15 frames

T303 Timer

Set up timeout

4 seconds

4 to 12 seconds

T305 Timer

Disconnect timeout

4 seconds

4 to 30 seconds

T308 Timer

Release timeout

4 seconds

4 to 12 seconds

T309 Timer

Signal loss

90 seconds

30 to 120 seconds

T310 Timer

Call Proc. timeout

60 seconds

2 to 120 seconds

T313 Timer

Connect timeout

4 seconds

4 to 60 seconds

T316 Timer

Restart timeout

120 seconds

30 to 120 seconds

 

Terminal Equipment Identifier  

Programmable by

System Manager

Mode

All

Idle Condition

Not required

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R INA, and 100 DCD module)

Factory Setting

0

Valid Entries 0 to 63
Inspect No
Copy Option

No

Procedure

Assign link layer address or Terminal Equipment Identifier (TEI) of equipment connected to each D-channel:

LinesTrunks PRI Protocol TEI Dial slot no. (1-17)
Enter Drop Dial new ID no. (0-63) Enter Back Back
Back

Switched 56 Dial Plan Routing  

Programmable by

System Manager

Mode

Hybrid/PBX

Idle Condition

100R and 100 DCD modules idle

Planning Form

3b, Incoming Trunks: DS1 Connectivity (100D, 100R, and 100 DCD module)

Factory Setting

D4 compatible

Valid Entries D4, ESF
Inspect No
Copy Option

No

Procedure

To specify Expected Digits:

LinesTrunks or More T1 Data NW S56 Dial Plan Routing Expected Digits Drop Dial expected digits Enter Back Back Back

To specify Delete Digits:

LinesTrunks or More T1 Data NW S56 Dial Plan Routing Delete Digits Drop Dial delete digits Enter Back Back Back

To specify Add Digits:

LinesTrunks or More T1 Data NW S56 Dial Plan Routing Add Digits Drop Dial add digits Enter Back Back Back

Topics
  Description
 
  Called Party Nunber (CdPN)
Calling Party Number (CPN)
Lines / Trunks
PRI
T1
DS1 Facility Options
Type of Service
Framing Format
Line Coding
Channel Service Unit
  Line Compensation
Signaling Mode
Tandem PRI Trunks
Tandem PRI Trunk Programming
PRI Programnming Options
PRI Programnming Options - PRI Telephone Number
PRI Programnming Options - Network Services Supported
PRI Programnming Options - Copy Telephone Number to Send
PRI Programnming Options - Telephone Number to Send
PRI Programnming Options - Test Telephone Number
  PRI Programnming Options - Timers and Counters
PRI Programnming Options - Terminal Equipment Identifier (TEI)
PRI Call Processing
Incoming Calls
Outgoing Calls
Network Selection Table
Call-by-Call Services Table
Station Identification - Automatic Number Identification
T1 Programming Options
T1 Programming Options - T1 Tie Trunk Connections
T1 Programming Options - T1 Routing by Dial Plan
System-wide Programming Options - Clock Synchronization
System-wide Programming Options - Clock Switching
  At a Glance
  Considerations & Constraints
 
  Incoming Calls
Outgoing Calls
  System Programming
Mode Differences
Feature Interactions