[asterisk-bugs] [JIRA] (ASTERISK-26491) pjsip: PJSIP is confused by erroneous Contact header. chan_sip handles it fine.

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-26491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-26491:
------------------------------------

    Description: 
Our Asterisk is behind an NAT and has an public ip. Sometimes our public ip address changes. Asterisk sends an REGISTER all 480 seconds.

If our public ip address changes and Asterisk sends an re-REGISTER, our provider sends an OK. But asterisk does not realize it. Instead asterisk sends multiple times a new REGISTER and gets always an OK. After some time it logs "res_pjsip_outbound_registration.c:761 schedule_retry: No response received". Why!? Asterisk received multiple times an OK!

After some wait time it retries again, gets an 403 Forbidden from our provider and permanently stops outbound registration.

Chan_sip handle properly this situation.

Attached a log from the communication between asterisk and tel.t-online.de.

I think the problem is that the OK from the provider contains following lines:
Contact: <sip:0123456789 at 192.168.0.10:45060>;expires=480
Contact: <sip:0123456789 at 192.168.0.10:45060>;expires=10
Asterisk see the 10 seconds expiring Contact and schedules a new registration. But in reality the first Contact is "the new" one, this one is expiring in 480 seconds.
Asterisk re-REGISTER till the second Contact is expired.

  was:
Our Asterisk is behind an NAT and has an public ip. Sometimes our public ip address changes. Asterisk sends an REGISTER all 480 seconds.

If our public ip address changes and Asterisk sends an re-REGISTER, our provider sends an OK. But asterisk does not realize it. Instead asterisk sends multiple times a new REGISTER and gets always an OK. After some time it logs "res_pjsip_outbound_registration.c:761 schedule_retry: No response received". Why!? Asterisk received multiple times an OK!

After some wait time it retries again, gets an 403 Forbidden from our provider and permanently stops outbound registration.

Chan_sip handle properly this situation.

Attached a log from the communication between asterisk and tel.t-online.de.


> pjsip: PJSIP is confused by erroneous Contact header. chan_sip handles it fine.
> -------------------------------------------------------------------------------
>
>                 Key: ASTERISK-26491
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26491
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 13.11.2
>            Reporter: Daniel Heckl
>            Assignee: Unassigned
>            Severity: Minor
>         Attachments: log.txt, pjsip-debug-log2.txt
>
>
> Our Asterisk is behind an NAT and has an public ip. Sometimes our public ip address changes. Asterisk sends an REGISTER all 480 seconds.
> If our public ip address changes and Asterisk sends an re-REGISTER, our provider sends an OK. But asterisk does not realize it. Instead asterisk sends multiple times a new REGISTER and gets always an OK. After some time it logs "res_pjsip_outbound_registration.c:761 schedule_retry: No response received". Why!? Asterisk received multiple times an OK!
> After some wait time it retries again, gets an 403 Forbidden from our provider and permanently stops outbound registration.
> Chan_sip handle properly this situation.
> Attached a log from the communication between asterisk and tel.t-online.de.
> I think the problem is that the OK from the provider contains following lines:
> Contact: <sip:0123456789 at 192.168.0.10:45060>;expires=480
> Contact: <sip:0123456789 at 192.168.0.10:45060>;expires=10
> Asterisk see the 10 seconds expiring Contact and schedules a new registration. But in reality the first Contact is "the new" one, this one is expiring in 480 seconds.
> Asterisk re-REGISTER till the second Contact is expired.



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