G.729 is an audio data compression algorithm for voice that compresses voice audio in chunks of 10 milliseconds. Music or tones such as DTMF or fax tones cannot be transported reliably with this codec, and thus use G.711 or out-of-band methods to transport these signals.

This section will show you, if this DID number support g729 codec or not

• please note that you can force our IP address under your server on any codec you want and DIDx will trans code it for you.