Protocols and standards. We live and die by them, and while we can’t live without them, sometimes they can be a royal PITA. And so it is apparently, with Polycom’s interpretation of RFC4568 Session Description Protocol (SDP), with which I became all too familiar this week.
I was called in to try and figure out why a customer’s Polycom VVX’s intermittently couldn’t call out to the PSTN. They could place the call seemingly OK, but as soon as the external party answered it dropped.
Incoming calls were fine, and none of their other clients had any outgoing problems: their Office 2013 and Office 2016 PC clients were fine, as were the fading old CX600’s. Making this scenario all the more interesting is that the PSTN Gateways are NET / Sonus “VX 1200” gateways still running flawlessly from their Lync 2010 days – and still supported by the vendor until the end of 2018 BTW!
Media Bypass is enabled in this environment, so the obvious conclusion to draw was that we were dealing some some kind of incompatibility between the new-ish phones and the (ahem) “mature” VX’s.
Continue reading ‘VX says VVX “Not Acceptable Here”’ »
What’s with the monthly client update cadence at the moment? No complaints here though: I personally benefit from possibly two of these fixes! The March update took us to 15.0.5015.1000, and our early April update (Kb 4018334) adds 8 builds to hit 15.0.5023.1000.
This update fixes the following issues:
- Kb 4095404 A call to yourself is initiated when you add audio to an existing meeting in Skype for Business
- Kb 4095405 High memory usage and crash when you receive an HTML message in Skype for Business
- Kb 4095406 External user can’t sign in Skype for Business that uses TLS-DSK or modern authentication
- Kb 4095407 Splitter bar in a tabbed conversation window doesn’t show when DPI setting is larger than 100% in Skype for Business
- Kb 4095408 Repeated “You were added as delegate for” message at every logon in Skype for Business 2015 (Lync 2013)
- Kb 4095409 Searching chat room history by date returns incorrect results when the date format is other than US format (mm/dd/yy)
Continue reading ‘Lync 2013 / SfB 2015 Client Update – April 2018’ »
At about the same time any given Skype for Business deployment gains its second PSTN gateway / Session Border Controller, the old diagnostician in me wants a means to be able to directly send calls to each one individually. By being able to directly focus my outgoing calls on just one SBC I can confirm all sorts of things: that it’s talking to SfB OK, its carrier connection is working correctly, it’s sending the expected CallerID outbound to the PSTN, it’s handing calls from “unknown” calling numbers (foreign to the services attached to the SBC)… It’s also helpful if you want to test calls *in* to a different SBC, and you don’t want your outgoing call to muddy the logging captures on the SBC under test.
If your SBCs are in different states or countries you can usually take advantage of the Least Cost Routing (LCR) you’ve built into the deployment to achieve this – but what if they’re across town from each other in the same calling zone, or butting up against each other in the same rack in a load-sharing config? Enter “Direct Trunk Select”.
Continue reading ‘Adding Direct Trunk Select to Skype for Business’ »
I recently had the opportunity to spend some quality time with “Pano”, Polycom’s meeting room collaboration interface, and I found it a really useful piece of kit.
What Is It?
Pano is an interface device that lets you share content from your PC, Mac or mobile device into a meeting or meeting room. You can do so wirelessly or via HDMI cable if you’re old-school.
Features and Capabilities
Continue reading ‘Review: Polycom Pano’ »
I hit an expected snag recently where I wasn’t able to get an existing SfB 2015 Front-End pool to start after growing it from 1 to 3 servers. Coincidentally I’d performed this same job for another customer maybe a month prior and it had gone off without a hitch. Not so this time.
Try as I might, no amount of resetting the fabric with Reset-CsPoolRegistrarState was going to work; the pool steadfastly refused to start:
Start-CsPool : Please make sure at least 2 machine<s> are in running or starting state to achieve fabric network ring quorum from the following machine list. Also makes sure Windows Fabric Host Service is running on those machines.
Continue reading ‘Event 18456 – Start-CsPool Error Failed to Connect to BackEnd’ »
Our March 2018 update nudges the server up from 6.0.9319.510 to 6.0.9319.516 and updates 7 components on my Standard Edition Front-End.
It doesn’t seem to be officially called CU7, but so far Martin and I are going with that. I’ll update the post if I’m advised to the contrary. CU6 HF2 it is, thanks Tim!
According to the kb, “This update enables Location-Based Routing to support the Skype for Business mobile clients”, but the last one said that too.
It also fixes the following issues:
- Kb4036626 Missing ApplicationOptions attribute in user object created by New-CsHybridApplicationEndpoint cmdlet in Skype for Business Server 2015
- Kb4078589 High memory usage on RtcHost.exe when you deploy Shared Line Appearance in Skype for Business Server 2015
- Kb4078588 Can’t sign in Skype for Business mobile apps after applying Skype for Business Server 2015 CU6
- Kb4078590 Calls to Mac fail when enhanced presence privacy mode is enabled in Skype for Business Server 2015
- Kb4078592 Push Notification not working for Skype for Business for iOS in Skype for Business Server 201
- Kb4078587 Voice settings are intermittently reset in Skype for Business on iOS and Android
Continue reading ‘SfB 2015 Server Update – March 2018’ »
The February update broke us through through the FIVE THOUSAND BUILD mark to hit 15.0.5007.1000, and our March update (Kb 4018290) nudges us higher to 15.0.5015.1000.
This update fixes the following issues:
- Kb 4089881 Outlook freezes when creating a Skype meeting in Skype for Business 2015 (Lync 2013)
- Kb 4089880 File transfer is allowed in meetings even when EnableExternalP2PFileTransfer is set to false in Skype for Business
- Kb 4089885 Upcoming meetings keep missing from the Meetings tab in MSI-based edition of Skype for Business
- Kb 4089883 Wrong user name in error message when a call transfer isn’t completed in Skype for Business 2015 (Lync 2013)
Continue reading ‘Lync 2013 / SfB 2015 Client Update – March 2018’ »
Hosting back-to-back meetings is at times unavoidable, and if you’re not careful you run the risk of people joining your second meeting before the first has concluded. This potentially awkward scenario arises when you’ve used the same conference ID for both, and your newcomers blissfully join not realising the virtual meeting room is already (still) in use.
If you find yourself in this situation, I have a quick fix for you: lock the door! You can do this in the virtual sense by changing the meeting so that the only person who will be automatically admitted is the organiser – yourself.
While you have the Skype meeting open, simply click the ellipsis, select “Skype Meeting Options”, then change “These people don’t have to wait in the lobby” to be “The meeting organizer” and OK. Here it is visually:
Continue reading ‘Lock your SfB meeting to prevent unwanted newcomers’ »
The January update took us to 15.0.4997.1000 and this week Kb 4011678 pushed us through the FIVE THOUSAND BUILD mark to hit 15.0.5007.1000. Phew!
This update fixes the following issues:
- Kb 4076534 Skype for Business client crashes when working with external contacts in Outlook
- Kb 4076533 Can’t input messages until clicking participants list after full-screen sharing in Skype for Business 2016 and Skype for Business 2015 (Lync 2013)
- Kb 4076532 Set the default value of the EnableRestoreOAuthUsedKeyWhenUsingCachedWebTicket key to true
- Kb 4076531 You’re prompted for Exchange credentials when you switch to internal network for Skype for Business
What’s New / Changed
Continue reading ‘Lync 2013 / SfB 2015 Client Update – February 2018’ »
In the process of deploying an SfB installation or maybe in the early days of go-live it’s not uncommon for users to report a problem where they’re unable to add people to their Delegates or Team-Call Group list. It’s less common to see this in established installations, but there are genuine reasons why this might happen.
When this problem occurs you’ll typically be able to see the user when you search, but the OK button won’t light up:
Continue reading ‘SfB user can’t add Delegates or Team Call members’ »