[asterisk-bugs] [JIRA] (ASTERISK-30453) On external transfer Contact header rewriten with external_signaling_address

[Joshua C. Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-30453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua C. Colp closed ASTERISK-30453.
-------------------------------------

    Resolution: Duplicate

> On external transfer Contact header rewriten with external_signaling_address
> ----------------------------------------------------------------------------
>
>                 Key: ASTERISK-30453
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-30453
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 18.16.0
>         Environment: Oracle Linux 8
>            Reporter: Rafal Ramocki
>
> When PJSIP option external_signaling_address is set because node is behind NAT when Transfer() application is executed to redirect call incomming on SIP Trunk back to the same trunk Contact: header of 302 responce is rewriten with external_signaling_address.  Transfer() is executed in following way:
> Transfer(PJSIP/sip:XXXXXXXXX at sip.example.com);
> And this results in following responce:
> SIP/2.0 302 Moved Temporarily
> Via: SIP/2.0/UDP 87.204.129.4:5060;rport=5060;received=87.204.129.4;branch=z9hG4bK5fpi6q209g1s0s873tq0.1
> Call-ID: SD6bg3a01-d831b6e708921fa733c1a098525082f7-ag3jn70
> From: <sip:XXXXXXXXX at xxx.com;user=phone>;tag=SD6bg3a01-1699263443-1678104169287-
> To: "xxxxxxxxx xxxxxxxxx" <sip:xxxxxxxxx at xxx.com.pl;line=xzlstoa>;tag=542f525d-dda1-446a-9641-3675c9e0a70e
> CSeq: 459720100 INVITE
> Server: Asterisk PBX 18.16.0
> Contact: <sip:XXXXXXXXX at 1.2.3.4>
> Reason: Q.850;cause=0
> Supported: histinfo
> Content-Length:  0
> Where 1.2.3.4 from Contact: header is the same as external_signaling_address. When external_signaling_address is not set in pjsip.conf, 1.2.3.4 is the domain that the same as one in parameter of Transfer applicaation.
> In my opinion expected behaviour is to not rewrite Contact: headers with external_signaling_address at transfer.



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