[asterisk-bugs] [JIRA] (ASTERISK-22789) Asterisk 11: SDP is badly negotiated for telephone events, thus not recognizing DTMF

[Pawel Kuzak (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-22789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pawel Kuzak updated ASTERISK-22789:
-----------------------------------

    Attachment: A11_sdp_2.txt
                A11_sdp_1.txt
                A10_sdp.txt

Attached SDP examples of test calls.
                
> Asterisk 11: SDP is badly negotiated for telephone events, thus not recognizing DTMF 
> -------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-22789
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22789
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Core/General
>    Affects Versions: 11.5.1, 11.6.0, 11.7.0
>            Reporter: Pawel Kuzak
>         Attachments: A10_sdp.txt, A11_sdp_1.txt, A11_sdp_2.txt
>
>
> After upgrading from Asterisk 10 to Asterisk 11 DTMF recognition does not work as expected. I've attached some SDP examples from test calls. 
> # A10_sdp.txt (Callee is Asterisk 10.12.1)
> Caller sends INVITE with telephone-event 99, Callee answers with telephone-event 99, Caller sends RTP event with 99, DTMF recognition works, everything is fine
> # A11_sdp_1.txt (Callee is Asterisk 11.5.1)
> Caller sends INVITE with telephone-event 99, Callee answers with telephone-event 101, Caller sends RTP event with 118 (!), DTMF recognition does not work (here the caller is obviously misbehaving as well)
> # A11_sdp_2.txt (Callee is Asterisk 11.5.1)
> Caller sends INVITE with telephone-event 106, Callee answers with telephone-event 101, Caller sends RTP event with 101, DTMF recognition does not work (note that the payload type 101 in the 200 OK is also assigned for G726-32(!))
> Could you please take a look at it?

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