[asterisk-bugs] [JIRA] (ASTERISK-23018) PJSip 'allow=all' doesn't work

[Joshua Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-23018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=213078#comment-213078 ] 

Joshua Colp commented on ASTERISK-23018:
----------------------------------------

Just a comment on what the problem is here:

res_pjsip_sdp_rtp adds codecs to the SDP based on the preference order defined. When using "allow=all" no preference order is present, which means no codecs get added to the local SDP. This causes SDP negotiation to fail.
                
> PJSip 'allow=all' doesn't work
> ------------------------------
>
>                 Key: ASTERISK-23018
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23018
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip
>    Affects Versions: 12.0.0-beta2
>            Reporter: xrobau
>
> Adding 'allow=all' to a pjsip endpoint results in a codec error:
>  No joint capabilities between our configuration((g723|gsm|ulaw|alaw|g726|adpcm|slin|lpc10|g729|speex|speex16|il) and incoming SDP((nothing))
> Note that after speex16 the start of 'ilbc' appears to be there. 

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