Category Archives: Lync / Skype4B

Articles Relating to Microsoft Lync or Skype For Business

Reverse Engineering the new Microsoft Teams SIP Gateway – Part 1

It here. it’s here. it’s finally here! The long-awaited SIP gateway for Microsoft Teams is here. Note: This is a deeply technical article on how the SIP Gateway provisioning service works, if you’re just looking to get your SIP phones working, Martin Boam has a great article over here Unfortunately, despite my begging, I didn’t… Read More »

More MCOValidationErrors and chasing squirrels in ADSIEdit

The experienced around here know an article is going to be good when I mention ADSI edit. But for those that don’t know, ADSI edit is one of the more dangerous Active Directory tools allowing Administrators to edit things directly, even if they have no idea what that means. I hear a lot about how… Read More »

Can’t Migrate Licensed Teams User – Licensing Error

I ran into an interesting one today that had me scratching my head as to why we couldn’t move a user from Skype for Business On-Prem to Microsoft Teams. Whenever we attempted to move a small bunch of users from on-prem to Teams the Skype for Business PowerShell Move-CsUser cmdlet would throw the error. The… Read More »

Solving Pesky TLS Issues on Old Hardware

Part of being a Skype and Teams administrator is trying to reconfigure legacy hardware that’s been left in a corner for 5+ years and never updated. Problem is, the world has moved on since these devices were deployed and depending on what firmware they were running when they were deployed. They likely won’t talk with… Read More »

Teams 3PIP phones getting the wrong Dial Plan?

Hey all, Welcome back. Today I have another interesting one. I had a situation recently where a customer’s Polycom VVX phones that were signed into Teams, couldn’t successfully make calls unless they dialled numbers in E164 format. (You know, that weird “+61432500648” one) Sounds like a classic case of a wrong Dial Plan, or so… Read More »