[SIPForum-discussion] REGISTER without Contact

pankaj jain jainp1979 at gmail.com
Thu Feb 22 12:01:34 UTC 2007

If UA send a REGISTER request without a contact header , what should be the
response from Registrar?
If I am correct, RFC 3261 says that Registrar should return the list of
subscribed contact addresses.
but if this is the 1st request , in that case what should be the response?

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