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Section 700-Operation
Maximum Time Priority Route Tables
Description
ISDN Support
Description
Hardware Requirements
The following are the minimum hardware requirements for ISDN support in the DBS:
•
ISDN Trunk Card (VB-43571)
•
CPC-EX (VB-43415)
•
SCC-B (VB-43421) (with ROM 1.3 or later)
•
MDF Card (VB-43562)
DBS-2.3/9.2-700
CPC-EX allows a maximum of 8 Time Priority Route Tables to be used
during LCR programming. (CPC-AII/B allows a maximum of 16 Time
Priority Route Tables. This number is reduced with CPC-EX since very
few systems require more than 3 of these tables and the saved memory
space will allow for a planned future enhancement.)
The DBS uses Time Priority Route Tables to route calls to the least
expensive carrier based on the time of day the call is placed. The following
program addresses use Time Priority Route Tables:
• FF8 1#...LCR Area Codes
• FF8 2#...LCR Office Codes
• FF8 4#...Special LCR Office Code Tables
• FF8 5#...Time Priority Route Tables
CPC-EX supports ISDN-PRI (Integrated Services Digital Network --
Primary Rate Interface). This ISDN Interface provides 23 voice channels
("B" channels) and a control channel ("D" channel) over a 4-wire circuit.
One program address, for Trunk Circuit Type (FF2 (trunk #)# 21#), has
been modified to allow for ISDN. This modification is described below. In
addition, CPC-EX provides several additional programming addresses to
support ISDN. The additional program addresses, as well as additional
detail on ISDN, are described in the ISDN Reference Manual, Part No.
504X00301A, Section 530.
DBS Manual - Revised April 2000
Appendix A. EX 1.0 Feature Update
Page A-31
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