[Freeswitch-users] TCP vs UDP SIP

[Spencer Thomason]

Hello all,
In our deployments, Freeswitch is on a public IP with most user endpoints  
behind NAT.  As the demand for BLFs has grown I've been forced to go to TCP  
due the NOTIFYs exceeding MTU. I've been reluctant to use TCP for SIP due to  
the increased overhead.  Currently I force a registration expiry of 600  
seconds and ping all NATed endpoints.  I'm exploring the idea of switching  
all endpoints to TCP where available, ditching the options pings and  
dropping the registration expiration to 300 secs which should exceed the TCP  
connection timeout of almost every router I've seen.  I was currious if  
anyone had an experience or could point out any caveats I might run into.

Thanks in advance,
Spencer

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