I wonder if it's possible to recover UDP connections after a crash on Kamailio/rtpengine so we can survive a reload or a segfault in any of them.

Since UDP isn't connection oriented, opening the sockets in the same order the original mapping were made, there's no reason to think it shouldn't work, but what about TLS/WS connections for SIP signalling? these two look unrecoverable. 

Putting TLS/WS aside for a moment, what about DTLS connections for RTP/RTCP? This also looks quite challenging/impossible considering that rtpengine generates a new cert/key after each load. 

I'm interested in contributing a patch/module to make this possible, but I don't know all of the constraints that may exist, especially from SDES/DTLS point of view. Maybe Richard Fuchs can point me to the right direction.
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