04-24-2009 10:43 AM - edited 03-18-2019 10:56 PM
I have a Cisco 2811 with (1) 4-Port FXO Card, and (1) 4-Port FXS card.
Can (1) PVDM2-8 chip support both Cards. I know that PVDM can be shared between Voice and Conferencing, and I just wanted to make sure that both FXO and FXS cards will be able to get channels assigned from (1) PVDM2-8 chip.
04-24-2009 10:49 AM
we have a tool to help with that, pretty useful. try it
DSP Calculator
http://www.cisco.com/cgi-bin/Support/DSP/cisco_dsp_calc.pl
BTW: a DSP can only be used for voice termination/xcoder OR CFB. if it's CFB it CANNOT be used for anything else
HTH
java
if this helps, please rate
04-24-2009 03:11 PM
Hi Abbas,
The -8 refers to the maximum of 8 G.711 (low complexity) calls.
FXO and FXS ports will allocate resources upon bootup, unlike PRI's. With PRI's you can oversubcribe your DSPs, but analog ports just won't come up.
In this case 4+4 = 8 as long as you only use G.711, and your voice-card is set to codec complexity flex (default).
-nick
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