Calls fail from Lync to Cisco Call Manager via SBC

Good afternoon everyone!

I have recently been involved in a Lync Enterprise Voice Telephony pilot, coexisting with Cisco Call Manager (CUCM) during the pilot phase.

So to help give a better understanding of the issue, the below diagram summaries the setup.

CiscoSBCLync

 

 

I liked to provide as much info as possible, if you need a quick fix, scroll down to the resolution section 🙂

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Lync Phone Edition Devices – Not updating

During a recent engagement, I had ran into an issue updating the firmware version on Lync Phone Edition Devices.

I initially kicked off with checks around DNS, Certificates, Ports and everything checked out but phones would still not update.

Test Devices had been configured correctly (using serial number and one using MAC) – still no joy.

The IIS logs are extremely useful; Jeff Schertz has excellent blog posts on Configuring LPE for Lync and Updating LPE devices which go into reviewing the IIS logs. In summary, it enables you to confirm whether devices are communicating with the device update site running on within the front-end pool, or in our case – NOT.

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*Issue* Lost Data When Migrating from Lync Server 2013 to Skype4B

Microsoft released KB on Saturday 2nd May via its FAST PUBLISH process, so clearly there is some urgency behind this patch.

So what’s the issue?

As we know, when migrating from one pool to another, to maintain scheduled conference IDs we leverage the Conference Directory structure (in addition to SQL).

Prior to KB3062801, if administrators leverage the Lync Server 2013 Management Shell to complete the conference directory move to a Skype for Business pool, there is the potential for data to be lost, which will not provide a pleasant experience to your end users.

How can you fix it?

Apply May 2015 CU Update for UC Managed API to all servers within your estate, this will allow for management of the conference directories, using Lync Server 2013 Management Shell.

Are there any workarounds?

Yes – use the Skype for Business management shell to move your conference directory – not the Lync Server 2013 Management Shell! 🙂