From: A Comparative Survey of Adaptive Codec Solutions for VoIP over Multirate WLANs: A Capacity versus Quality Performance Trade-Off
Codec
Bitrate (B)
Packet size (L)
MOS
G.711
64 Kbps
160 B
4.1
G.726
32 Kbps
80 B
3.85
G.729A
8 Kbps
20 B
3.7
G.723.1
5.3 Kbps
3.6