[asterisk-bugs] [JIRA] (ASTERISK-22789) chan_sip SDP incorrect negotiation for RTP payload types causes DTMF recognization failure and appears to violate RFC

J. DARIO ALVAREZ (JIRA) noreply at issues.asterisk.org
Sun Nov 24 15:42:03 CST 2013


    [ https://issues.asterisk.org/jira/browse/ASTERISK-22789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=212204#comment-212204 ] 

J. DARIO ALVAREZ commented on ASTERISK-22789:
---------------------------------------------

This issue and 17410 are the same: Incorrect negotation of dynamic payload types in Asterisk 10 and 11.

This issue is worth to be closed and change focus to 17410


                
> chan_sip SDP incorrect negotiation for RTP payload types causes DTMF recognization failure and appears to violate RFC
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-22789
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22789
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Channels/chan_sip/General, Channels/chan_sip/Interoperability
>    Affects Versions: 11.5.1, 11.6.0, 11.7.0
>            Reporter: Pawel Kuzak
>         Attachments: A10_sdp.txt, A11_sdp_1_log.txt, A11_sdp_1.txt, A11_sdp_2_log.txt, A11_sdp_2.txt, sip.conf
>
>
> 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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