3-32 DBS 576 (USA) issued October 2000 576-36-700Chapter 3. System Features Section 700 - OperationRelated Programming• N/AConsiderations• N/ADP/DTMF SLTsThe System supports both DP (rotary dial) and DTMF (push button) analog extension types.Hardware Requirements• N/ARelated Programming• N/AConsiderations• The CPC card provides 4 DTMF receivers. Traffic levels may require that one or more MFR(DTMF) circuit cards be installed. Each MFR card provides 8 DTMF decoders.ISDN/BRI S-Point InterfaceThe System supports ISDN-BRI terminal devices for connection as extensions. The BRI provides 2 B(bearer) plus 1 D (data) channel support (2B +D; 192 kbps).Hardware Requirements• N/ARelated Programming• N/AConsiderations• N/AISDN/PRI S-Point InterfaceThe 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, 16, or 24 circuits may be enabled on the interface. Each enabled group of 8 circuits requiresa slot position in the System. A fully used card uses 3 slot positions for the DBS 576.Hardware Requirements• N/ARelated Programming• N/AConsiderations• N/A
