Lync client showing duplicate numbers on contact card.

A customer contacted me with a request to look into a problem regarding duplicate numbers in the Lync client contact card. When a Lync user would call a colleague, the numbers displayed in the list would be duplicates with normal eight digits and the same number with a + sign in front. After some digging in AD, Exchange and Lync without figuring out where this number came from, I kind of stumbled across the solution.

I created a normalization rule that normalized all numbers starting with a +, removing the + and adding +47(for Norway):

RegEx Matching pattern ^\+(\d{8})$ (for Norwegian eight digit phone numbers, replace with your own digit length), Translating rule +47$1 (Norwegian national prefix, replace with your own).

This change in normalization for workaround purposes turned out to be a valid solution to remediate the problem with duplicate numbers. Seems like Lync is collapsing the numbers based on the newly created normalization rule, thereby de-cluttering the number lookup in the contact card and call rooster.

Maybe this is documented somewhere in MS documentation, but if not, here’s how to fix the problem if you stumble across it 🙂

Comments greatly appreciated.

Upgrading to Skype4B, things to concider.

Blogging from the Microsoft Ignite conference in Chicago.

As you all know, the Skype4B server upgrade can be done as an in-place upgrade from Lync 2013. However, there are things to concider.

If the server is a Lync 2010 server, there is no way to do an in-place upgrade. Migration is the only way.

Lync 2013 supports the in-place upgrade as long as you can schedule downtime because the services are removed during the process. For enterprise pools you would have to stop the entire pool to upgrade, so users will have to be moved to secondary pool or downtime will occur(there is no option for co-excistense of Lync 2013 and Skype for Business in the same pool).

When it comes to the server OS, you would want to concider upgrading the server if you’re on WinSrv 2008 or 2008R2. The Skype4B server install will upgrade windows fabric to the latest version, but only on 2008R2.

Recommendation: Win2008 or 2008R2 should be upgraded to 2012R2.

Implication: The upgrade process to Skype4B will have to be done as a migration if your servers are on Win2008 or Win2008R2.