Tag Archives: Skype for Business

Troubleshooting Issue: Can’t manage Skype Response Groups from CSCP GUI

17 Wednesday Jan 2018

Posted by in Response Groups, RGS, Troubleshooting, Workflows

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Problem

The Response Groups tab does not show any configured Workflows, Queues or Groups. Also I am unable to configure any Response Groups.

Manage Response Groups

Response Group Workflow Page Blank

Troubleshooting

The Workflows do exist as my first check was to make sure they are visible and I can manage them from PowerShell. So permissions don’t appear to be an issue.

Attempting to add a group via the Control Panel I get the message “No workflows are assigned to current manager”.

Skype Response Groups No Workflows are assigned to current manager

Now that’s cryptic, why does the Control Panel think I am a Response Group Manager?

A quick check in Active Directory Group Membership for my account shows that I am a member of CSAdministrator BUT am also a member of CSResponseGroupManager.

 

Response Group Manager

I am certainly not supposed to be an RGS Manager.

Solution

 The CSResponseGroupManager group only allows access to manage groups that a user has been specifically assigned too. Removing my account from this group corrected the situation and I was able to manage all RGS as expected.
If a user was assigned as the group manager, then ONLY that particular group would be visible in the Control Panel.
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SIP/2.0 415 Unsupported Media Type

30 Saturday Sep 2017

Posted by in Firewall Rules, SIP, SIP 415, SIP/2.0 415 Unsupported Media Type

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So this is a new error for me, not seen this in Skype Client logs before. But there it was, SIP/2.0 415 Unsupported Media Type.

unsupported media

The deployment is Two Front End Pools (both Standard Edition) with a single Edge Pool. No Enterprise Voice (yet).

The Problem

When attempting to call a service that’s effectively a Pexip DMZ Cloud Service in New Zealand (called SmartPresence) from the corporate LAN then the call seems to connect but then disconnects, there is no audio or video.

It all works when then the Skype user tries calling the Pexip\SmartPresence bridge from an external location (not corporate LAN).

Troubleshooting

At first glance, you’d agree that this smells of firewall issues. Lets see what the logs say. Heading off to the client logs cause that’s my go to as a starting point for these sorts of issues. I find the call and of course spot the SIP/2.0 415 Unsupported Media Type.

Looking at the negotiation of Media I see that the Skype Client sends all the usual audio and video codec options.

Audio options from Skype client

Snooper 01

Video Options from Skype client

snooper 02

On the inbound side from SmartPresence we see that there are less media options (thats expected) but certainly options that match with what the Skype client is capable of.

Audio Options from Pexip\SmartPresence

snooper 03

So it appears that its not so much an unsupported Media type, lets see what the clients agree on using by looking for the results of the candidate negotiation.

Looking for the a=remote-candidates line tell in the client log should show the options both clients agree on.

Wait..there is no a=remote-candidates for this call!

What, so that means that the candidate negotiation is failing to establish a viable path between the the Skype client and the Pexip\SmartPresence service. Taking a closer look at the candidtes on offer I see the below.

Candidates from Skype client

snooper 04

So the Skype client sends options 2,3 and 4 as viable (1 and 5 are direct, thats not allowed by customer strict firewall policies).

Candidates from SmartPresence\Pexip

pexip 01

Looking at the options from the Pexip\SmartPresence service I can see the candidates on offer.. and there it is.

Those are not standard ports!

Since when do we need ports in the 40 000 range from our Edge Server pool outbound?

Right, what does the Pexip portal say with regard to firewall requirements. Searched a while for this info but eventually found the following table

pexip 02

and also this little gem

pexip 03

Solution

Open ports 40 000 – 49 999 for both UDP and TCP outbound from the Edge pool to Pexip\SmartPresence Cloud

Source https://docs.pexip.com/sfb/ports.htm

Skype Admin Tools: LURIA 2.0

17 Thursday Aug 2017

Posted by in Lync 2013 Tools, Skype for Business Tools, UC Sorted Tools

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Back in 2014 I released a tool named LURIA designed to lookup assigned numbers and policies for Lync\Skype objects. You can find the original HERE.

Once the CSMeeting cmdlet was introduced it became clear that I needed an update. So why has it taken so long? Simply because I wanted to introduce the ability to EDIT the looked up items directly in the Data Grid.

LURIA

So what’s new in V2.0?

With LURIA 2.0 it’s possible to edit items on mass. I have included the editing of the following fields in the grid view:-

  • SIP Address
  • Line Uri
  • Dial Plan
  • Voice Policy
  • Conference Policy
  • Location Policy
  • Client Policy
  • External Access Policy
  • Mobility Policy
  • PIN Policy
  • Hosted Voicemail Policy

Another new addition is the ability to open the grid view as a .csv

How does it work?

  1. Fire up LURIA V2.x.x.exe (current version needs Skype Admin Tools installed)2.0.8
  2. Click on the Load button (depending on how many entries are found this could take a few seconds. My direct access connection to the office with around 500 entries takes under 15 seconds). You may get a Not Responding notice, if so please be patient..
  3. Search for the entry you are looking for
  4. Edit as needed (currently a tab is needed to register edited info)
  5. Click Commit, the displayed data now represents only the changes fields
  6. You could load up again by clicking the Load button (please remember that it can take some seconds before the committed changes are ready, I usually wait 10 seconds before Loading again)

Requirements

Currently you will need Skype Admin Tools installed to run LURIA

Download Luria 2.0 from HERE

What’s next?

  • Looking to add an option to add new users individually as well as from a .csv import
  • Will be adding a remote PowerShell Connect option

I am looking for feedback and suggestions on improvements, happy to hear from you.