30 maj 2013 kl. 11:38 skrev Khoa Pham <onmyway133@gmail.com>:

> When I make REGISTER request to server Kamailio. Kamailio sometimes return me REGISTER 200 OK response with many Contacts in Contact header field
>
> Contact:
> <sip:user1@1.1.1.1:58492;transport=TLS;ob>;expires=29;received="sip:1.1.1.1:58492;transport=TLS",
> <sip:user1@3.3.3.3:58520;transport=TLS;ob>;expires=244,
> <sip:user1@1.1.1.1:58529;transport=TLS;ob>;expires=284;received="sip:1.1.1.1:58529;transport=TLS",
> <sip:user1@3.3.3.3:58548;transport=TLS;ob>;expires=329,
> <sip:user1@3.3.3.3:58562;transport=TLS;ob>;expires=393,
> <sip:user1@1.1.1.1:58571;transport=TLS;ob>;expires=483;received="sip:1.1.1.1:58571;transport=TLS",
> <sip:user1@2.2.2.2:58588;transport=TLS;ob>;expires=538,
> <sip:user1@1.1.1.1:58600;transport=TLS;ob>;expires=587;received="sip:1.1.1.1:58600;transport=TLS",
> <sip:user1@2.2.2.2:58611;transport=TLS;ob>;expires=630,
> <sip:user1@1.1.1.1:58624;transport=TLS;ob>;expires=670;received="sip:1.1.1.1:58624;transport=TLS",
> <sip:user1@2.2.2.2:58632;transport=TLS;ob>;expires=706,
> <sip:user1@1.1.1.1:58650;transport=TLS;ob>;expires=826;received="sip:1.1.1.1:58650;transport=TLS",
> <sip:user1@2.2.2.2:58661;transport=TLS;ob>;expires=900;+sip.instance="<urn:uuid:00000000-0000-0000-0000-00007dtrf0a4c>";reg-id=1
>
> Why is that ?

The SIP standard says that the response should include ALL current registrations. These are registrations that has not expired yet.

/O


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