[asterisk-bugs] [JIRA] (ASTERISK-24274) Codec Format Is Not Included in the SDP Media Attributes When SLIN48 Codec Is Used

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-24274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=222512#comment-222512 ] 

Rusty Newton commented on ASTERISK-24274:
-----------------------------------------

[~fchin] would you feel comfortable following the [Code Review|https://wiki.asterisk.org/wiki/display/AST/Code+Review] process to help get the patch into Asterisk? If so, please follow that guide and get the patch on Reviewboard. Then others can help you along.

We can't accept inline patches, we also need you to add the file using "More > Attach Files" and select code contribution. Note you'll only be able to do this after you sign the submission agreement (see link at the very top of JIRA).





> Codec Format Is Not Included in the SDP Media Attributes When SLIN48 Codec Is Used
> ----------------------------------------------------------------------------------
>
>                 Key: ASTERISK-24274
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24274
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 12.4.0
>            Reporter: Frankie Chin
>         Attachments: sip_server_A.conf, sip_server_B.conf
>
>
> I first submitted this question in the forum and was later asked to submit it as an issue: http://forums.digium.com/viewtopic.php?f=13&t=91190&start=0&hilit=Confbridge&sid=9ee675f5b376c518edec9952fb0de9b5
> I described the issue background and my findings in the forum. So I think I don't need to repeat it here. In summary:
> 1) When using SLIN16, the media attributes are: "m=audio 19942 RTP/AVP 118 101"
> 2) When using SLIN48, the media attributes are: "m=audio 17868 RTP/AVP 101"
> Please find the attached sip.conf of Server A and B.
> Another thing I noticed in Server A's debug log is that the Joint capabilities are (nothing). This is the same when using "slin16" as well.
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: *** Our native formats are (slin48) 
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: *** Joint capabilities are (nothing) 
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: *** Our capabilities are (slin48) 
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: *** AST_CODEC_CHOOSE formats are slin48 
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: *** Our preferred formats from the incoming channel are (slin) 
> [Aug 27 02:30:30] DEBUG[6124] chan_sip.c: This channel will not be able to handle video.
> What other settings I need to configure in order to get some valid joint capabilities?



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