g729 Has pretty "Decent" voice Quality. Each Call is 8k Compressed. G728 is 16k Compressed. Now, these values do not take into account IP Header overhead.

VoIP Equipment for 51 DS1's is not going to be cheap. The best bet on the Cisco Side is the 6500 or even a router like the 7200 the with the Voice Card's.

Again, not cheap, but it does work pretty well..

Spencer
************************************************************
Spencer Wood, Network Manager
Ohio Department Of Transportation
1320 Arthur E. Adams Drive
Columbus, Ohio 43221

E-Mail: Spencer.Wood@dot.state.oh.us
Phone: 614.644.5422/Fax: 614.887.4021/Pager: 866.591.9954
*************************************************************

Robert White <texan37@swbell.net>
Sent by: owner-nanog@merit.edu
11/13/2003 03:18 PM

To
nanog@merit.edu

cc

Subject
Voice Compression

I am looking for an economical solution to compress 1248 voice DS-0s to 240 DS0s. My application is to extend the voice and data for a call center that needs roughly 63 T-1 equivalents of bandwidth down 21 physical T-1 ciscuits.