On 19/11/2004 21:13 alexandre::aldeia digital said the following:
I like to know why iLBC and GSM generate a 40-50kbps bandwidth....
Is very high, if compared with your calculations for other codecs(G723.1 / 17kbps and G729 / 24 Kbps).

the other codecs have better compression, but there's a higher computational price to pay to get that higher compression. for IAX-IAX calls, i've found GSM to be more than adequate, especially with IAX trunking turn on where each additional call just tags on 17kbps in bandwidth.


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