Hello,
How to configure pjSip 2.5 to send UDP keep alive packets to avoid NAT break SIP connection? I mean force firewall/nat to keep ports mapping opened. What will be the format of such messages? How SIP server should respond to them (We have hand written SIP server)
I saw only TCP keep alive setting, but I'm talking about UDP. Not sure if sending REGISTER is suitable for me. I need this packets to be send ONLY during the call, so the other side can send BYE message.
We are using Android
Thanks
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