I think you mean that dtmf https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling is not being received and understood by your peer.
look at linphone->preferences->network->transport->DTMF's sending method RFC 2833 is typical but your peer may require SIP Info. On Fri, Jul 27, 2018 at 11:15 AM, A John <[email protected]> wrote: > Hi, > > I have successfully called and connected to a SIP number, but when > prompted to enter a number on the keypad, the keypad does not respond to > the numbers I have entered. > > Please advise? > > -- > Regards, > > Alex John > > _______________________________________________ > Linphone-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/linphone-users > > -- Sincerely, Russell Treleaven sip:[email protected];transport=tcp
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