Lync server KB3080353 breaks your mobile and web app clients

Keeping your servers up to date is essential, and not only the application server parts but the OS and others as well. The other day I went with a Windows Update that also included a Lync Server security update. After a short while I would get feedback from users no longer being able to use the mobile client, and later I also got reports on the Web App not working. Continue reading

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Monitoring your Lync Peak Call Capacity

Both SIP and ISDN trunk providers will often bill you based on the number of simultaneous calls/channels they provide (as well as minute charges). As a result you may end up scaling your capacity above what your real needs might be, just to be on the safe side.

With Lync there is no available tool to monitor this, neither real-time nor historically. There used to be a cool script available by Tom Pacyk to do this, but the times this need has arisen over the last year I have only been faced by an error message stating that the resource is not available.

The call performance counters reside on the Mediation server and are by no means a secret, but I haven’t seen anyone else (beside Tom) provide something to output them.

That aside; I decided to make my own PowerShell script to this.
It is still maturing, but for now it will give you

  • Console output with the current total of inbound, outbound and concurrent calls (sampled every 15 seconds)
  • CSV file output with hourly peak and average (per 15 seconds) statistics on the same counters

I will continue to develop it into a more complete solution, as I see fit. If you have suggestions or comments on the topic they are more than welcome! Although, I have to admit that my PowerShell skills are not unlimited, I promise to give it my best effort!

DISCLAIMER: As I just began working for a new employer where I have not yet got the chance to upgrade our Lync platform to server 2013, I can only vouch for it working on Lync Server 2010 – but I cannot see any reason why it should not run on the 2013 version (the counters would be identical, I think). In any case it will have to be run on the server hosting the Mediation role.

Download the latest version of the script from here.

Cheers!


Release history:

April 15 2014 – v0.5 – first basic version, dumping hourly statistics to CSV file (max/avg in/out/concurrent calls)
April 16 2014 – v0.8 – added console output with current counters, added keyboard input to exit script

Lync Server Management Shell on Windows Server 2012R2

I recently installed Lync Server 2013 on a Windows Server 2012R2 for the first time.

Although everything worked just as before I noticed that Lync Server Management Shell would not start – it would just hang with a blank window without the prompt. No error or indication as to what might be the problem.

To get around it I simply launched the “regular” PowerShell and ran a import-module lync cmdlet. After this “Lync PowerShell” can be used just like before.

Lync 2013 dual homed collocated Mediation server – the solution

This blog post is all about how to go about setting up a collocated Lync Server Mediation server with separate NIC’s for Primary (or Lync if you will) and PSTN traffic. I wrote it due to the fact that I find this setup poorly documented, and hopefully others will escape the pitfalls that I encountered by reading it.

If you stumbled upon this post directly you might also find the previous one describing the problem in more detail interesting. If not, or if you are more into just fixing problems, then please keep reading.

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Lync 2013 dual homed collocated Mediation server – the problem

First of all apologies for the rather long title, but I felt the need to state the full scenario in one sentence.

I have been struggling a little with this scenario for a while, and although it is briefly described as a supported and “no-brainer” setup in the TechNet documentation you come across it proved much harder than I first anticipated when recommending this design for a small sized customer. It also struck me, in regards to the previous reference to TechNet, how poorly documented this actually is – and inspired me to shed a little light to this dark corner of Lync Server installation.

As this post, as usual, turned out to be longer than I wanted it to be I decided to break it into two: This one being sort of the background or explanation, the next one will elaborate on the how-to’s.

Happy reading!

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Lync Server 2013 mobility – revisited

I wrote up a post on this topic a few months ago, named “Lync 2013 Mobile Client deployment – field notes“.

This has somewhat proven to be one of the more popular posts on my blog, both regarding stats and comments/questions. I have promised to update it to reflect some more recent experience and knowledge on the subject, but haven’t had the time until now (vacation time) to do so. But finally, here goes.

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Lync Phone Edition deployment – notes from the field

Lync Phone Deployment is pretty straight forward, and the mystery of DHCP options is pretty well documented on both Technet article and in Jeff Schertz’s excellent blog post on the matter. I have done a few of them, and they have all gone smoothly. Yet, a recent deployment really had me “rolling up my sleeves” to get it working. Here are some of my experiences, and what to look out for when setting it up.

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