[Asterisk-Users] Sip bandwidth usage

[WipeOut]

Paulo Mannheimer wrote:

>This is exactly what I did. 
>
>I used Xten's GSM driver to call a Zap extension. Readings where 100
>Kbits/s. Using uLAW returned 80 Kbits/s !!!
>
>I also downloaded Xten pro to test their g729 codec, readings were even
>worse.
>
>That's why I'm so intrigued.
>
>  
>
That is odd.. Especially since you got higher bandwidth usage with GSM 
than you did with G.711..

This is a good site to give you an indication of the bandwidth 
requirements for various codecs under various conditions..

http://www.packetizer.com/iptel/bandcalc.html

Later..