Voxilla VoIP Forum

eric

Bandwidth usage depends on the audio codec being used. Here are some typical bandwidth usage numbers based on the codec used:

Codec	Nominal Bandwidth Usage (Kbps)
G.711	87.2
G.729	31.2
G.723.1	(6.4k sample) 21.9
G.723.1	(5.3k sample) 20.8
G.726-32	55.2
G.726-24	47.2
G.726-16	31.5
iLBC	27.7

For best voice quality, G.711 is recommended.

bitsmt · #2 (**permalink**) August 11th, 2007, 04:46 AM

This is great, thank you. Could you also offer some advice on the advantage/disadvantage of each codec?

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