The vwic-2 cards can do voip or cross connect (no dsp used) but a channel can not do both at the same time. It is done on the controller creating a ds0 group or tdm group. In one E1 you can have both but the channels are dedicated. At least AFAIK. With 2 pvdm-32s you can do 64 channels of g711 , but any other codecs, fax/modem relay will be a medium or high complexity codec and will lower your channels considerably.
Brian -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brett Looney Sent: giovedì 13 novembre 2008 3.52 To: [email protected] Subject: Re: [c-nsp] 2821 voice configuration > 95% of the calls should be G.711, so that leaves me with 64 channels. > So in theory I should be able to fully utilize both E1s with calls > originating from SIP, right? What about E1-to-E1 calls that are just > switched in the box? Do they take any DSP resources at all? I'm unsure on that - best to check with Cisco. My guess is that they do take DSP resources and you'll be looking at two per call - one for the "incoming" E1 call leg and one for the "outgoing" E1 call leg. I could be wrong though - I would budget for worst-case in any event. B. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
