SDN Interface Setup/Configuration Recommendations

Author: Steve Schiemann Introduction and Background: This writing is intended for customers currently implementing or planning for the Software Defined Networking Interface (SDN) implementation for Lync/Skype for Business on-premise servers. As noted in my previous blog post, the SDN Interface uses open protocols to apply software control to network hardware. There are three primary components…


Have you heard the one about he delegate who accepted the meeting request?

Author: DJ Ball, Senior Escalation Engineer, Microsoft CSS Support Another day supporting Skype for Business, and another topic to discuss. Today we will look at delegation, and how to troubleshoot it. The case came in as a customer reporting that several of their Administrative Assistances could not create a Skype for Business meeting on behalf…


EVENT ID 56416 – Failed to post QoE report to External Consumer

Starting in Lync Server 2010, we added a functionality to enable our partners to provide insights into Call Quality by means of a sending a copy of the Voice Quality Report (VQReport) directly from the server. At that time, I knew of of a handful of companies that would allow you to configure QoEConfiguration, so…


High Glitch rate in QoE Report

If your organization uses Lync Monitoring Reports, CQM you may occasionally see high glitch rate in one or more calls. Both reports typically show you calls with very high glitch rate. In-order to resolve the issue, we first need to understand what a glitch really is. A glitch is defined as a short-lived fault in…


Help! My Director is consuming all my resources!

Author: DJ Ball, Senior Escalation Engineer, Skype for Business Recently I worked on a couple of cases where the administrators were reporting higher than average CPU consumption on their Director pool servers. They reported seeing sustained 80 to 90% CPU consumption during peak business hours. This was most noticeable around the top of each hour….


Understanding the relationships between UCMA Trusted Application objects

Author: Zack Campbell, Service Engineer, Microsoft Skype for Business Online Services I was recently engaged by the owner of multiple high-visibility and business-critical UCMA Trusted Applications, requesting my assistance to replace the Trusted App Computers associated to a large list of Endpoints. I didn’t know the full backstory, but apparently their servers were VMs, hosted…


EVENT ID 56208 – Resolving Issues with CDR Throttling

In my previous blog post, I had explained what causes EVENT ID 56208 and had alluded changing the threshold as a work-around. Here is a work-around to resolve identify the issue further, and apply a work-around. Running a simple SQL query mentioned below will be able to be provide a list of top 10 MS-Diagnostic…


Skype for Business Server Address Book Normalization Rules–Failing Normalization

Recently I was working on a Service Request, where the address book normalization was not able to normalize simple 10 Digit numbers. I tried about half a dozen normalization rules, trying to make sure that the pattern would capture the phone numbers, but kept failing continuously. As I was reading Ken’s Blog ( See:…


Simplified Port Requirements for Skype for Business Online

Hi all, Please visit our Techcommunity to read Thomas Binder’s new blog on Simplified port requirements for Skype for Business Online!   Thanks, Kris Korff, Sr. Supportability Program Manager, Skype for Business