We have 2 Cisco Call Manager in our site and place in 2 different locations connecting via a layer 2 network.
They form a cluster group and the production one is the publisher and the DR one is the subscriber.
In the DR situation, if the layer 2 connection between 2 CCM is broken, is it possible to change the subscriber to be the publisher and make changes on that?
Would you please guide me how to do so?
What you need to do is either:
1) Have your publisher permanently situated on the other site, so you can make admin changes when the main site dies.
- OR -
2) Have the normal configuration set up so that if the call arrives on your DR number that it is already configured to go to site C.
This would mean that you need to have your 'DR' number of 12340000, when it arrives at the gateway at Site B, translated to 56789012. This will mean you need a dedicated number assigned for DR; this way the only thing you need to do in a DR scenario is have your service provider do the rerouting.
If 1234000 is the same number that arrives in non-DR scenarios at Site A, then you would need different CSSs assigning to the gateways at Site A and Site B so that depending on where the call arrives, it will be sent to the correct destination.
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