[cisco-voip] SIP, g711 and PVDMs for transcoding

[Dennis Heim]

Depending on your ccm version, if you are 8.6(X) and later you can avoid needing to allocate MTP for early offer. The only media resources that you would need would be for transcoding (711/729). If you change your unity and other apps to use the codec used by the majority of devices, you can definitely cut down your DSP requirements.

Dennis Heim
Network Voice Engineer
CDW  Advanced Technology Services
10610 9th Place
Bellevue, WA 98004

317.569.4255 Single Number Reach
317.569.4201 Fax
dennis.heim at cdw.com<mailto:dennis.heim at cdw.com>
cdw.com/content/solutions/unified-communications/<http://www.cdw.com/content/solutions/unified-communications/>

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Paul Wozney
Sent: Thursday, September 29, 2011 9:50 AM
To: Cisco VoIP List
Subject: [cisco-voip] SIP, g711 and PVDMs for transcoding

Hello Cisco VoIP List,

I have a client who is interested in SIP trunking, and I'd like to verify if we need to allocate PVDMs for this the same way we do with PRI channels.  It seems to me that we might be able to get away without them if we're using the same codec internally as the carrier (g711).

---
Paul Wozney
Network Consultant
phone: +1 604-629-9975
toll free: +1 866-748-0516
email: paul at wozney.ca<mailto:paul at wozney.ca>
web: http://wozney.ca<http://wozney.ca/>
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