IP Codecs 1

[definityandcmuk]

Where in the Avaya docs can I find information on how many calls are supported using each codec?

What I have read so far is the TN2302 supports the following

G.711 - 64Kbps - 64 calls
G.729 - 8kbps - 32 calls

If G.729 uses less bandwidth why are less calls supported? Or is what I have been told incorrect?

 

[manfmmd]

The TN2302AP is your limiting factor given enough bandwidth. A TN2302AP will allow for 64 simultaneous calls. If you upgrade to a TN2602AP it will allow either 80 or 320 simultaneous calls. I don't believe that the codec comes into unless you have insufficient bandwidth to support the calls.

 

[phoneguy55]

64 for G.711 which is uncompressed audio. The other codec's are 32 calls (compressed audio).

 

[sjforcum]

The compression limits the resources used on the board.

 

[FSI]

If you use G.729, the call needs to be compressed, this is done by the DSP’s on the TN2302 board. A G.711 call doesn’t need to be compressed so the DSP’s have less work to do and therefore, can handle more calls.
So while G.729 uses less bandwidth, the DSP’s (Medpro-board) needs to work harder and can handle less calls.

Makes sense?

Regards

Frank

 

[definityandcmuk]

makes perfect sense thanks for all of your help