[asterisk-bugs] [JIRA] (ASTERISK-27674) chan_sip: RTP framing issues on outgoing calls

[Jean Aunis - Prescom (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-27674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean Aunis - Prescom updated ASTERISK-27674:
--------------------------------------------

    Attachment: full_case_2.txt
                full_case_1.txt

Adding log full for both cases.

> chan_sip: RTP framing issues on outgoing calls
> ----------------------------------------------
>
>                 Key: ASTERISK-27674
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27674
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 14.7.4, 15.2.1
>            Reporter: Jean Aunis - Prescom
>         Attachments: full_case_1.txt, full_case_2.txt
>
>
> When placing outgoing calls with chan_sip, RTP packetization time is not honoured, whether it is received from the remote endpoint in an SDP "ptime" attribute, or it is forced by configuration in the "allow" line.
> *Case 1 : ptime received from the remote endpoint*
> Given I have configured a peer with "autoframing=yes"
> When the peer replies to an INVITE with an SDP containing "a=ptime:40"
> Then RTP is still sent with a packetization time of 20 ms
> *Case 2 : packetization configured in sip.conf*
> Given I have configured a peer with "allow=alaw:40"
> When the peer replies to an INVITE without specifying "ptime"
> Then RTP is still sent with a packetization time of 20 ms
> Please note that the outgoing INVITE contains the proper "ptime" attribute in the SDP, the only problem is the RTP packetization.



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