DTMF RFC 4730 и 3265

[ketchup]

Asterisk 11.3.0
Организован сип транк с клиентом и у него используется Cisco Call manager.
Не передается DTMF со стороны клиента в asterisk. Как настроить поддержку на asterisk режимов dtmf RFC 4730 или RFC 3265? В режиме авто тоже не работает, клиент говорит, что техническая возможность использовать только один из двух этих режимов.

[ded]

На стороне Cisco укажите dtmf type rtp-nte

The SIP NTE DTMF relay feature is available only for SIP calls on Cisco VoIP gateways. The SIP NTE DTMF relay feature supports only hookflash relay and does not support hookflash generation for advanced features such as call waiting and conferencing.

Reliable DTMF Relay

The SIP NTE DTMF relay feature provides reliable digit relay between Cisco VoIP gateways when a low-bandwidth codec is used. Using NTE to relay DTMF tones provides a standardized means of transporting DTMF tones in Real-Time Transport Protocol (RTP) packets according to section 3 of RFC 2833, RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals , developed by the Internet Engineering Task Force (IETF) Audio/Video Transport (AVT) working group. RFC 2833 defines formats of NTE RTP packets used to transport DTMF digits, hookflash, and other telephony events between two peer endpoints.

Example:

Код: Выделить всё

Router(config-dial-peer-voice)# dtmf-relay rtp-nte

http://www.cisco.com/c/en/us/td/docs/io ... tures.html