IP Telephony and Phones

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Call Flow---PSTN---(SIP)------CUBE-----(SIP)-----CUCM8.5--------(SIP)------Rightfax ServerI have been battling this for a while and I'm stumped.  IB and OB calls stay up for about 40-50-seconds and drop. This is my IB Dial-Peer.dial-peer voice 806 vo...

I have 3 MCS servers in my telephony cluster1-Pub and 2-SubsEM is only configured on the Pub, if the pub goes off-line, I know the EM feature is gone...Question -    Can I run EM on 2 of the 3 servers at the same time?

Lewton by Level 1
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I'm about to do a 7.x to 8.x upgrade where I am also changing physical servers.  I performed a DRS backup of the 7.x server and am planning on importing that into the 8.x server (I have verified that the hop is supported).  My questions is about the ...

I believe the answer is no, but looking to definitive verification – a single Presence server cannot provide this service for multiple clusters, can it?  Meaning, the customer is wanting to avoid having to stand up a Presence server in each of four c...