Redundancy/failover is not occuring while E1 channels are out of service

Unanswered Question
Sep 29th, 2005
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Currently we have 2 x 3845 configured as H323 gateways which talk to Callmanager cluster.


Got Route group 1 and Route group 2 configured then associated both Route groups into a Route list.


Have a Route pattern e.g 0.! configured and referenced the Route list i created containing both RGs discard digits preDot on the Route group level instead of under the route pattern.


On one of the 3845-01 we have 2 x E1 PRI 60 channels out to the PSTN. The other 3845-02 we only have 1 x E1 PRI 30 channels.


Anyays when i force an outage on both the E1 PRIs on the 3845-01 e.g. shutting down the voice ports. I have this impression that when the H323 gateways send a H225/TCP message such as channel unavailable or a out of service message back to callmanager. Callmanager will then find that we lost H225 messages with 3845-01 and failover to 3845-02 router. I definitely know that if these gateways where configured for MGCP i can acheive what i wanted.


But in the past discussions on this forum people where able to get this to work with H323 no problems.


Is there something missing or misconfigured? could there be a service parameter on callmanager i can set, etc.


Please help really need to get this to work.


TIA


-Yavuz

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Aaron Harrison Thu, 09/29/2005 - 09:40
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Hi


Try setting the advanced CallManager service parameters 'Stop Routing on Unallocated Number Flag' and 'Stop Routing on User Busy Flag' to false..


Aaron

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