g.729的实现，应用于ip电话通信等很多需要语音压缩的地方，是国际电信联盟itu应用最广泛的一种标准之一-G.729 the realization used ip telephony and many other needs of the local voice compression, the International Telecommunication Union ITU is the most extensive application of a standard one

G.711 is an ITU-T standard for audio companding. It is primarily used in telephony.

电话语音，可进行拨号连接，类似网络电话系统。-Telephone voice, dial-up connection can be similar to Internet telephony systems.