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Rich_Hill_11043's avatar
Rich_Hill_11043
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Jun 23, 2011

SIP 480 RESELECT

I'm load balancing UDP SIP traffic across 4 SIP proxies, using CALL-ID for persistence. When we exceed a certain number of calls per second or a certain number of sessions, the SIP proxy responds wit...
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Rich_Hill_11043's avatar
Rich_Hill_11043
Icon for Nimbostratus rankNimbostratus
Jun 27, 2011
I have a call per second limiting rule in place already. Rate limiting isn't the problem, it's responding to error codes from the SIP proxies. I want to be able to receive a 480 error code from a SIP proxy and then respond to that by selecting a different SIP proxy for that call.

 

 

It's a very specific problem, but because of our architecture it's something I have to be able to do.

 

 

Also, I have to mention that we're doing SIP over UDP, so a lot of the connection-based rules aren't going to work, since they are based on TCP connections.

 

 

The SIP Proxies are set with a hard connection limit and will send back 480 error codes if they receive connection requests that will take them over that.