What are the supported codecs?
- G.711 - Pulse code modulation (PCM) of voice frequencies on an 64 kbps channel. mu-Law companding (PCMU) and a-Law companding (PCMA)
- G.726-32 - 32 kbit/s adaptive differential pulse code modulation (ADPCM). Need to use Little Endian.
- G.729 - Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear-prediction (CS-ACELP), including annex A and B.
* Do not use G.726 with Asterisk/Trixbox/CallWeaver