ide-band), iLBC, Opus , G.722.1, G.722.1c ,G729A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO)
视频编码
H.264 BP/MP/HP,视频分辨率高达1080p，帧率高达30fps，比特率可达4Mbps
人像视频分辨率
1080p@30fpsfrom1024 Kbps,720p@30fpsfrom512 Kbps, 4SIF/4CIF from 128 Kbps, SIF/CIF from 64 Kbps