Hi, Outbound provides the UAC a way to update a binding even if it reboots. For that, a unique and permanent value of instance-id is used, which in conjunction with the AoR and reg-id determines the binding to the UAC.
Having said this, I guess that the CSeq comparison between the one in the Register request and the one in the binding does not apply in this scenario since it is not guaranteed that a UAC saves the CSeq value of the registration among reboots. Regards. 2012/7/31 Daniel-Constantin Mierla <mico...@gmail.com> > Hello, > > > On 7/30/12 7:23 PM, Iñaki Baz Castillo wrote: > >> 2012/7/30 Daniel-Constantin Mierla <mico...@gmail.com>: >> >>> quick question to double check if what I understood when I read the specs >>> was ok -- in gruu/ob, it does not matter anymore the callid/cseq >>> combination, or there should still be some checks related to it? >>> >> In fact that depends on Outbound instead of GRUU, and not, when using >> Outbound the registrar does NOT check the Call-ID and CSeq of the >> REGISTER (and using GRUU means that Outbound is also used, so the >> Contact has a +sip.instance and reg-id params which are inspected by >> the registrar to create/update/delete a binding). >> > but what about same callid with lower cseq, combined with same sip > instance and reg-id? > > Cheers, > Daniel > > -- > Daniel-Constantin Mierla - http://www.asipto.com > http://twitter.com/#!/miconda - > http://www.linkedin.com/in/**miconda<http://www.linkedin.com/in/miconda> > Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - > http://asipto.com/u/katu > Kamailio Practical Workshop, Netherlands, Sep 10-12, 2012 - > http://asipto.com/u/kpw > >
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