I am trying to implement SIP mobile mobility using Linphone as UA and Kamailio as SIP proxy / registrar. I start the connection between two UAs in the same network (A), then I move one of the UAs to the network (B). According to RFC 3261, linphone (or any other UA compatible with it) must re-send an INVITE message to another UA (another user using linphone) to inform him of his new IP on the network (B), but this does not happen, and linphone does not resubmit INVITE ..... and the conversation stops. Could you help solve this problem? I want to know if re-INVITE functions are supported by default in linphone? if not, how can I activate it? or if you see flaws / problems in the described architecture, tell us how to fix it. Thanks.
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