RFC 5626 will likely be helpful. > -----Original Message----- > From: [email protected] [mailto:sip- > [email protected]] On Behalf Of VARUN BHATIA > Sent: Tuesday, April 29, 2014 6:52 AM > To: sip-implementors > Subject: [Sip-implementors] TCP/NAT handling in SIP > > Hi, > > If the UA is behind NAT registers on TCP and after that it initiates a > call > on same connection (may be another connection ?) after some time > connection > break now as soon as UA detect that the connection is closed it > initiates a > new REGISTER using new connection (It is not changing contact as it is > listening on default port). > > 1. Should UA send a re-invite/update for modifying the connection > status > within a call ? > 2. If No, then whether it is recommended in any of standard that we > should > use the same connection for sending any request ? > 3. Is there any RFC which mention the connection handling between > REGISTER > request and INVITE request ? > > Any inputs are appreciated. > > -- > Regards, > Varun Bhatia > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
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