Audio Codec’s: G.729, G.711
G.729 is an audio algorithm of voice transfer data compression that compresses the digital voice into 10 ms duration packages.
G.711 is an ITU-T standard for audio compounding. This is mainly used in telephony.
SIP-addressing is logical, of the same type as URL in HTTP. And the most natural – to use the electronic mail as the SIP address. There are permissible varied parameters by the address: for example, it is possible to indicate the regular city telephone number, additional telephone, and the parameters of modem connection etc.
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