Hello All,
I am trying to interpret section 10.3 of RFC 3261 which deals with
processing of incoming REGISTER requests.
Pardon my possible misuse of sip terminologies.
Suppose a UAC,which is registered with a SIP registrar, crashes and hence is
unable to Un register and unable to save its previous registration state
(Call-Id, CSeq etc).
The UAC comes up before the previous registration expires.
When the UAC comes up , if it sends a REGISTER, with a new Call-Id (Other
fields are the same as before: Address-of-record, Contact-ID, To, From, non
zero expiration etc). My interpretation is that in this case if the Call-Id
is different, the CSeq would not be checked. Is that correct ? The Registrar
should update the binding by replacing the old Call-Id.
So , unless the Registrar is configured to authenticate a UAC , any endpoint
can send a REGISTER with a different Call-ID and cause the Registrar to
update its bindings. Is that correct ?
Thank you ,
SD
P.S : Please guide me if this is not the appropriate mailing list
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