Hi,
I have a
few questions on the usage of the REGISTER method:
1. Suppose an outbound
proxy is configured for a UA, is it correct to assume that the UA should
register with the proxy to be able to originate or receive
calls?
2. If the answer to the
above question is yes, then in case the UA does not have any contact
address other than the address that it specifies in the To Header field
(registrand), then does the UA still need to add this address in the
Contact header (RFCbis says: "... bind the address listed in the To
field with a SIP server to one [underline is mine] or more URIs
...")?
3. If the answer to Q2
is no, then the statement "If the request does not contain a Contact
header, the registration remains unchanged." does not make sense for
first time registration of the UA.
Can someone please clarify?
thanks,
Bharat.
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