[asterisk-bugs] [JIRA] (ASTERISK-28261) PJSIP: SDP in 180 Ringing is ignored

[Michael Maier (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Maier updated ASTERISK-28261:
-------------------------------------

    Status: Triage  (was: Waiting for Feedback)

> PJSIP: SDP in 180 Ringing is ignored
> ------------------------------------
>
>                 Key: ASTERISK-28261
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28261
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 13.24.1
>         Environment: CentOS
>            Reporter: Michael Maier
>            Assignee: Michael Maier
>              Labels: patch, pjsip
>         Attachments: 180-ignored-sdp.pcapng, aor.txt, endpoint.txt, no-sdp-with-180.txt, res_pjsip_session-neu-3.c.diff
>
>
> Given is an outbound call to a callee via asterisk to the ISP. 
> After INVITE, the ISP sends 100 Trying and some time later 180 Ringing *w/* SDP and the header "P-Early-Media: sendonly" (no 183 or any other thing until callee responds). 
> SDP in 180 contains media attribute *sendrecv* (contradicting to the P-Early-Media header).
> Asterisk 13.24.1 sends PRACK to the ISP (w/o SDP) and the 180 to the caller - but SDP is dropped and therefor no early media is possible!



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