M2 Supported Codecs

G.711 alaw
G.711 ulaw
G.722
G.723.1 (passthrough only)
G.726
G.729 (Annex A only)
GSM
Speex (8kHz using 20ms ptime)
OPUS

M2 supports SIP protocol only.

See also

• M2 Codec Negotiation
• M4 Supported Codecs