Publisher vs Subsciber

Unanswered Question
Aug 26th, 2010
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Publisher vs Subsciber


In a scneario of Publisher & Subscriber......if say all the phone are registered with Subscriber and Subscriber Goes down so what is the effect on IP Phones or will all features work properly.

pls suggest.....

I have this problem too.
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Aaron Harrison Thu, 08/26/2010 - 02:50


In a properly configured 2-server system, both the Pub and Sub will be running all the required services. If the sub fails, the phones and gateways re-register to the publisher and service is restored.



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kakkargaurav Thu, 08/26/2010 - 03:37

thanks aaron,

but after registering the phones with publisher so is any effect or is there any missing service we can not see.....

or if i talk about the reverse Scnerio Publiser is down then , is there any service which we can not see on IP Phone.



Matthew Kaufman Thu, 08/26/2010 - 05:37

In a two server environment, so  long as you have your CM groups configured with the subscriber first and  publisher second, should the subscriber go down for whatever reason,  phones and other devices should register with the Publisher.

There is a section in the UC SRND which discusses this in detail:


Hope this helps!



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