[asterisk-bugs] [JIRA] (ASTERISK-29235) res_pjsip_nat: Contact is rewritten on REGISTER responses with external_signaling_address

[Brian Paboojian (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-29235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=253305#comment-253305 ] 

Brian Paboojian commented on ASTERISK-29235:
--------------------------------------------

That fixed the problem.  I set it like this;
[0.0.0.0-udp]
type=transport
protocol=udp
bind=0.0.0.0:5060
allow_reload=no
tos=cs3
cos=3

The headers are no longer being rewritten and B2BUA and now working properly.

Thank you very much for your help.

> res_pjsip_nat: Contact is rewritten on REGISTER responses with external_signaling_address
> -----------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-29235
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29235
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_nat, Resources/res_pjsip_registrar
>    Affects Versions: 13.36.0, 16.13.0
>         Environment: Freepbx 15 distro
>            Reporter: Brian Paboojian
>            Assignee: Unassigned
>            Severity: Minor
>              Labels: fax, webrtc
>         Attachments: eth1-EM.pcap, eth1-NAT.pcap
>
>
> I am testing SD-Wan with my Ribbon Edgemarc. The phone is sending the registration to the eSBC and then the SBC forwards the registration onto the Freepbx 15 system. Asterisk is rewriting the contact header when it sends the registration back to the phone and the Edgemarc is blocking it because this rewrite is a violation of RFC 3261. I have turned off contact rewrite in extension advanced settings. In reviewing the pcap reveal the contact header is still being rewritten.
> I have confirmed this setting in the config file Pjsip.endpoint.conf;
> rewrite_contact=no
> I worked with a Freepbx Engineer and he agrees this is an Asterisk bug.



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