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Cisco Presence Installation impact to IP telephony

Hi,

we have cluster with 8 CUCM servers (publisher + 7 subscribers). We would like to add Cisco IM & Presence as new feature.

Can we install Cisco presence during working hours? Do we have to expect some impact to current IP telephony?

Thanks,

S.

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Cisco Employee

Hi Sinisa,

Hi Sinisa,

There should not be any impact to Current IP telephony.

https://www.youtube.com/watch?v=AeWz048SjGY&t=727s

(Rate if it helps)

JB

VIP Advisor

Prior to 10 no impact. From

Prior to 10 no impact. From 10 onward there is tight integration with CUCM. I don't think there will be an impact. 

Cisco Employee

Hi Sinisa,

Hi Sinisa,

Since the IM&P node needs to be added on CUCM under System > Server before you install it, you should take into consideration the following from the IM&P install guide

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/install/10_0_1/CUCM_BK_I95AD2FE_00_installing-cucm-100/CUCM_BK_I95AD2FE_00_installing-cucm-100_chapter_01001.html

"After you install a new node in an existing cluster, all phones that are registered to the cluster are reset."

I am sure about this happening with CUCM nodes, haven't got a chance to test it with IM&P but it is not mentioned that this is only applicable to CUCM nodes. 

My suggestion is to go ahead with the IM&P Publisher deployment during a maintenance window if you don't have a confirmation about this behavior via TAC or your Cisco Account team.

Manish

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