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Basic Rate Interface (BRI) Feature

System Programming

Clock Syncronization  
Programmable by

System Manager
Mode

All
Idle Condition

Not required
Planning Form

3b, Incoming Trunks: DS1 Connectivity 100D, 100R, and 100 DCD Module
3i, Incoming Trunks: BRI Options
Factory Setting Primary clock: the first 100D/100R/100 DCD module in the control unit carrier
Valid Entries Primary, Secondary, Tertiary, Loop/Local
Inspect No
Copy Option No
Console Procedure

Specify 800 NI-BRI modules that provide primary, secondary, and tertiary clock synchronization and source-of-clock synchronization; also activate/deactivate clock:

LinesTrunksMoreClockSyncPrimary Dial slot no. (1�17)EnterDial port no. or select source of synchronizationEnterSecondary Dial slot no. (1�17) EnterDial port no. or select source of synchronization EnterTertiaryDial slot no. (1�17)EnterDial port no. or select source of synchronizationEnterBackBack
Service Profile Identifier (SPID) and Directory Number (DN)  
Programmable by

System Manager
Mode

Key, Hybrid/PBX
Idle Condition

Not required
Planning Form

3i, Incoming Trunks: BRI Options (800 NI-BRI module)
Factory Setting none
Valid Entries SPID: up to 20 digits (any combination of 0 to 9)DN: up to 10 digits (any combination of 0 to 9)
Inspect No
Copy Option No
Procedure

Assign telephone numbers (SPID and DN) to BRI lines:

LinesTrunks or MoreBRISPID/DN. Dial line/trunk no. (1�80)EnterDial SPIDEnter Dial DNEnterBackBack
The system will not be forced idle when SPIDs are entered. However, if for some reason a SPID changes, the line must be idle (no active call on the line) in order to change the SPID.
Timers  
Programmable by

System Manager
Mode

Key, Hybrid/PBX
Idle Condition

Not required
Planning Form

Form 3i, Incoming Trunks: BRI Options (800 NI-BRI module)
Factory Setting See Table 1
Valid Entries See Table 1
Inspect No
Copy Option No
Procedure

Specify BRI timer settings:

LinesTrunks or MoreBRITimersSelect timerDropDial no. of seconds or msEnterBackBack


Table 1. Timers

Timer/Counter

Purpose

Factory Setting

Valid Range

Increments

T200 Timer

maximum response time

1000 ms

500 to 5000 ms

500 ms

T203 Timer

maximum time

33 seconds

10 to 255 sec

1 sec

T303 Timer

Set up timeout

4 seconds

2 to 10 sec

1 sec

T305 Timer

Disconnect timeout

30 seconds

2 to 60 sec

1 sec

T308 Timer

Release timeout

4 seconds

2 to 10 sec

1 sec

 

Topics
  Description
 
  Terminology
Clock Synchronization
Clock Switching
Timers and Counters
Call Processing
  At a Glance
  Considerations & Constraints
  System Programming
Feature Interactions