The quality of VoIP calls depends on the codec used for the transmission and on the bandwidth of Internet connection. I want to use best optimized codec for my Internet connection.
I have to select codecs from the following list:
- G.711 u law
- G.711 a law
Which one to choose and why?
I want to have best high quality voice on both sides.
I have ADSL2+ Internet connection with bit rates:
- download 6 Mbit/s
- upload 0.5 Mbit/s