3021M100-002
12-1
12
BRI DIGITAL VOICE I/O CARD
The Basic Rate Interface (BRI) Digital Voice I/O card mounts on the motherboard
in any of slots 1-8. It enables the CX950 to transmit compressed voice, and data
over an ISDN BRI-S/T interface. The B channels can be software configured fo
voice compression at 8.0 Kbps (G.729) and 40, 32, 24, or 16 Kbps (G.726), or 64
Kbps (G.711).
WARNING:
The BRI-DV I/O card
cannot coexist
with the following cards in the
same CX950 chassis:
- Analog Voice I/O Card
- DDVC (Dual Digital Voice Compression) Card
In networks where the telco supplies Network Termination 1 (NT1), the CX950
must use an ISDN-S/T (4-wire) interface.