[asterisk-bugs] [JIRA] (ASTERISK-23279) [patch]Asterisk doesn't support the dynamic payload change in rtp mapping in the 200 OK response

Fri Feb 14 02:05:03 CST 2014

    [ https://issues.asterisk.org/jira/browse/ASTERISK-23279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=215236#comment-215236 ] 

Niklas Larsson commented on ASTERISK-23279:
-------------------------------------------

Tested on 11.6.0 and it solves my trouble when the other side sends a=rtpmap:99 telephone-event/8000 -> with this patch asterisk responds with a=rtpmap:99 telephone-event/8000 and DTMF is working.

> [patch]Asterisk doesn't support the dynamic payload change in rtp mapping in the 200 OK response
> ------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-23279
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23279
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/RTP
>    Affects Versions: 11.4.0
>         Environment: Debian wheezy amd64
>            Reporter: NITESH BANSAL
>         Attachments: dynamic_payload_change.patch, sip.conf, uac_asterisk.xml, uas_asterisk.xml
>
>
> Scenario:
> Asterisk sends the INVITE proposing alaw and telephone-event, it proposes rtpmap:101 for telephone-event.
> Peer responds with 2xx, it answers with alaw and telephone-event also, but it proposes a different rtpmap number(rtpmap:103) for telephone-event.
> Expected Behaviour: Asterisk should honour the rtpmapping in the response and send DTMF packets using 103 as payload type for DTMF.
> Actual Behaviour: Asterisk sends DTMF packets using payload type 101.
> Regards,
> Nitesh 

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