sip static routes

Unanswered Question
Nov 18th, 2008


I have configured two sip static routes pointing to two vxml gateways in call server.

If the first vxml gateway is down, it does not switch to the second static route pointing to the secondary vxml gateway, instead it returns 9292 error.

Is there anyway to handle vxml gateway redundancy without introducing CUPS.

Pls suggest..

I have this problem too.
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rafi.imran Tue, 11/18/2008 - 21:35

My pattern is 77>.

My ingress(3845) and vxml(as5350)gateways are separate.

How do we handle redundancy of vxml gateways here?

pantinor Mon, 12/08/2008 - 11:54

You can use DNS SRV with local static routes as well, that is, no CUPS.

Check off use SRV in OAMP. Then create your static route and point it to your SRV cluster name. Do not indicate a port on the srv name.

Thanks for that. Just to clarify ....

So in the DNS SRV _tcp and _udp entries, one puts the two VXML gateways. DNS round-robins these destinations for SRV requests from the SIP service of the Call Server.

Is it the SIP service that does the retry?

It asks DNS, gets a gateway, tries it and it fails. It asks DNS again, it does the round-robin and returns the other gateway, and the SIP service tries that one.



rafi.imran Mon, 12/15/2008 - 00:38

99% DNS returns gateway ip which is up and running.

I dont think SIP service would retry.

Do we have any other config to be done except enabling DNS SRV in oamp.

DNS srv _tcp and _udp entries part of DNS server or call server?


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