26 May
2017
26 May
'17
3:45 a.m.
In urecord.c:get_ucontact_by_instance, REGISTER without instance-id will
check cseq number(must be higher), REGISTER with instance-id will not
check cseq number.
what is the difference?why not check cseq in REGISTER with instance-id?
Thanks
26 May
26 May
4:42 a.m.
通 <shuntongzhang(a)gmail.com> wrote:
In urecord.c:get_ucontact_by_instance, REGISTER
without instance-id will
check cseq number(must be higher), REGISTER with instance-id will not
check cseq number.
what is the difference?why not check cseq in REGISTER with instance-id?
Hi
I am not familiar with the mentioned code, but from outbound rfc
point of view it seem to be related to detecting device even if
it has restarted.
See 5626 for more: https://tools.ietf.org/html/rfc5626#section-3.1
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Mikko Lehto
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Mikko Lehto -
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