There is no need to send REGISTER-Requests this often. This will generate unnecessary load on the application level.
If UDP is used for transport, empty UDP packets can be sent to keep the NAT-binding alive. When TCP is used, the method mentioned in RFC5626, 3.5.1 can be used to keep the NAT-binding alive. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
