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.

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Rejection from iPhone Appstore and Dispute between AT&T — About Google Call Blocking

Because Google Voice provides such a competitive and feature-rich service that not only includes free VoIP and SIP calls across North America and internationally at fantastic rates, in addition to a huge range of services such as voicemail, conference calls and voice transcription, it was inevitable that since its inception it would attract the ire of other competitors who would block it, or sue in courts to have the government legislate against it.

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