[cisco-voip] SIP trunk - how to make it redundant - CM6 to OCS 2007

[Jozef Janitor]

I am not sure, but you may try to use a 3rd party SIP proxy server (SER,
OpenSER) configured in a kind of load balancer mode and put in between your
OCS and CCM cluster.

 

All the best,

   Jozef Janitor

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Brian Van
Benschoten
Sent: Tuesday, November 06, 2007 5:38 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] SIP trunk - how to make it redundant - CM6 to OCS 2007

 

I'm setting up a SIP trunk between CM6.01a and our OCS 2007 environment.

My question is how do you configure redundancy in this setup.

I have a publisher and subscriber in my cluster, but the OCS side wants to
build a SIP trunk to a SINGLE ip address.

If I build the SIP trunk between the CM subscriber and the OCS box and the
subscriber goes down, is my SIP trunk gone ?

My publisher would still be up, the SIP trunk would register with the
publisher but now the IP address of its endpoint would be the publisher and
OCS most likely wouldn't like that.

 

I think this issue exists with any type of SIP trunk on call manger.  To
CUPS or a 3rd pary PBX too.

 

Any ideas how to work thru this?

 

________________________________________

Brian Van Benschoten 

Practice Leader - Unified Communications

Consulting Engineer - CCIE # 5421

Inacom Information Systems

3001 West Beltline Highway

Madison, WI  53713  USA

608-661-7780 (IP Phone)

608-661-7701 (FAX)

608-661-7777 (Customer Service)

brian.vanbenschoten at inacom.com

 <http://www.inacom.com/> http://www.inacom.com

 

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