Section 700 - Operation Chapter 3. System Features
576-13-700 DBS 576 (USA), Revised 6/11/98 45
Considerations
•N/A

ISDN/PRI S-Point Interface

The System supports ISDN-PRI terminal devices with the ISDN/PRI S Point Interface (VB-44540).
The PRI provides 23 B (bearer) plus 1 D (data) channel support (23B +D; 1544 kbps).
Either 8, or 16 or 24 circuits may be enabled on the interfac e. Each enabled group of 8 circuits
requires a slot position in the System. A fully used card uses 3 slot positions.
Hardware Requirements
•N/A
Related Programming
•N/A
Considerations
•N/A
Flexible Numbering Plan
Description
The System provides flexible numbering for feature access special numbers and extension numbers.
The dialing plan allows settings for digits dialed at dial tone, digits dialed at ringback tone, digits
dialed at busy tone, two patterns of feature codes dialed at dial tone, two patterns of feature codes
dialed at ringback tone, and two patterns of feature codes dialed at busy tone.
Feature access codes can be used when replacing another PBX system with a DBS 576 syste m. Rat her
than learning the new access codes, the System feature access codes can be changed to match the old
system. As a result, telephone users are less confused by the change and the requi rement f or re training
is reduced. Two sets of feature access codes are available (one of the two must be assigned to the
terminal).
Hardware Requirements
•N/A
Related Programming
•N/A
Considerations
•N/A