Section 700 - Operation Chapter 3. System Features576-20-700 DBS 576 (USA), issued January 1999 47Analog Device CapabilityThe System supports analog telephone devices. These devices include fax machines, answeringmachines, cordless telephones, computer modems as well as standard rotary and push buttontelephones. This provides full flexibility in configuring the System.Hardware Requirements• Analog devices must be connected to an analog port.Related Programming• N/AConsiderations• N/ADP/DTMF Single Line Telephones (SLTs)The 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, or 16 or 24 circuits may be enabled on the interface. Each enabled group of 8 circuitsrequires a slot position in the System. A fully used card uses 3 slot positions.