Multi Site Sharing single Exchange UM


Scenario is 2 x 2010 FE and 1 x UM server
After deploying the second Lync FE pool I found that users in new site (pool) couldn’t call voicemail. Checked the Event logs for the Lync Front End where the users in question are homed and found the following error:-

So based on this it seems that UM doesn’t know about the second lync server 
Of course this sent me directly to the Exch\UM server (either will do as long as they have access to the Exchange Management Tools) for confirming, and so I saw the following:-

No Second UM IP Gateway to the second Lync FE Server…

Since the original 1:1 was created by the PS Script exchucutil.ps1, running this script on UM would find the missing pool and add it as a UM IP Gateway as below:

As seen in the image above the “missing” pool was created, albeit without the DialPlan. Running the exchucutil.ps1a second time resolves that (Go figure)
And a final check on the Exch\UM Exchange Management Tools showed that the new Gateway was nos sorted as below:-

Testing the users on the new pool was now successful.
I had simply forgotten to run the util for the second Lync Pool discovery
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About Paul B

My name is Paul Bloem and I am employed at Lexel Systems in New Zealand as a Principal Consultant for Unified Communications. I have been working on enterprise voice solutions for over 20 years. My first 10 years were spent working for a Telco in South Africa (Telcom SA). This is where all the groundwork happened as I was exposed to just about every aspect of telecommunication you could imagine. I develop an interest in PBX technologies and eventually became the go-to guy. Next, I had a 10 year run at Siemens South Africa, most of my time there was as a Technical Trainer. During this time VoIP hit the world stage, I had the privilege of introducing VoIP both as H.323 and later SIP across the Siemens HiPath 4000 solution stack. In 2008 I immigrated to New Zealand with my newly attained MCSE, I was ready to go where no PBX Techie had gone before. I was employed to explore OCS 2007 and that was pretty much the beginning of the end for me. I have been working on OCS and Lync ever since. My current role focuses exclusively on Lync and associated technologies.. That includes pre-sales, consulting, architecture and design, training and support. I even get to play in the development space from time to time - focus on play ;-) I was nominated as a Microsoft VTSP for Lync early in 2013 and also awarded Microsoft's MVP award for Lync in 2014.
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