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Asterisk & DTMF - ThinkTel
http://thinktel.distributel.happyfox.com/kb/article/16-asterisk-dtmf/
Asterisk & DTMF David Vansickle. Feb 03, 2019. 227 Asterisk normally handles RFC2883 in a strange manner: From the phone: Audio Audio Audio DigitStart Duration Duration DigitEnd Audio Audio It waits until it sees 'DigitEnd' before …
Record and Playback DTMF - Asterisk Support - Asterisk ...
https://community.asterisk.org/t/record-and-playback-dtmf/29615
If you use a speech only codec, like GSM or G.729, the resulting DTMF is likely to be unusable. Assuming that you use the info or rfc2833 options, SendDTMF doesn’t generate DTMF withing Asterisk, but just sends a message that causes DTMF to be generated at the PSTN boundary, on the analogue interface card, or in the phone.
Asterisk 18.4 Dtmf Problem - Asterisk SIP - Asterisk Community
https://community.asterisk.org/t/asterisk-18-4-dtmf-problem/90456
I have installed Asterisk 18.4.0, I have a problem with dtmf on both sip and pjsip. I use rfc2833 in sip.conf and rfc4733 in pjsip.conf. If I receive a call with rtp payload 96 (a = rtpmap: 96 telephone-event / 8000) the dtmf does not work, if I receive it with 101 (a = rtpmap: 101 telephone-event / 8000) it works, can anyone help me?
Asterisk & DTMF - ThinkTel Technical Support
https://support.thinktel.ca/kb/article/5-Asterisk_DTMF
Asterisk & DTMF. Asterisk normally handles RFC2883 in a strange manner: From the phone: Audio Audio Audio DigitStart Duration Duration DigitEnd Audio Audio It waits until it sees 'DigitEnd' before it does anything, then it sends (in a tight for loop):
Configuring Asterisk
http://www.asteriskdocs.org/en/3rd_Edition/asterisk-book-html-chunk/DeviceConfig_id216341.html
The dtmfmode option is used to define which DTMF (touch-tone) format Asterisk should expect to be sent by the telephone. The four options are: info , inband , rfc2833 , and auto . The info value means to use the SIP INFO method, inband is for inband audio tones, and rfc2833 is for the out-of-band method defined by that RFC.
Application_Festival how to get the DTMF back? - Asterisk ...
https://community.asterisk.org/t/application-festival-how-to-get-the-dtmf-back/91473
Application_Festival - Asterisk Project - Asterisk Project Wiki says that the intkeys will return any of those keys if the user pushes DTMF during the audio, but it seems the keys are “returned” into the extension processing code and Asterisk …
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