Category Archives: Gateway

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 »

Forwarding Original Caller ID with Skype4B and Telstra SIP

So I recently had a customer request that they have an on call mobile display the number of the calling party when a line was diverted outside of business hours. Luckily they were using a standard client to do the call forwarding and not a response group, so it was simple to redirect the call… Read More »

SIP Extension fails to register to Sonus SBC with error “Incomplete Message”

So I had a weird one recently that I had been troubleshooting for ages, a previously working paging unit was reconfigured to use a new IP address and would no longer register to the Sonus SBC2000. All the obvious things were checked… Sip Server table had been updated Federated IP/FQDN for the Signalling Group had… Read More »

Skype4B fails to add gateway to routing due to EventID 25705

Another quick one. I ran into an issue where after adding a new analog gateway to a customers environment. The new appliance was not receiving any SIP messages from the Registrar at all. Ran through the usual checks. DNS name resolves Can ping the gateway Port 5060 accessible (not using TLS on this appliance) But… Read More »

Skype for Business SBA Migration Cheat Sheet

Okay, I’m supposed to be publishing my LPE article. But its not done yet. So have this “Quick and Nasty” guide instead I’ve recently been migrating customers from older SBA’s running Lync 2013 code to newer SSD based SBA’s running Skype for Business 2015 and as such I’ve been working on a tool for Pool… Read More »

A Better External Ringer for Skype for Business

So I recently had a requirement to get an external ringer working for a customer using Skype for Business. The issue? They use Polycom VVX300’s as Common Area Phones and didn’t want more “traditional” external ringer devices like an ATA with an analog phone attached. I’ve seen solutions where a vendor had previously hacked up… Read More »

SBA Fails to install. Due to applications not being defined in topology

Ran into an interesting one for those that still install SBA’s I know the mentality these days is to get redundant network links to highly available pools, but when a business is located over 600km (370+ mi) away from the nearest CBD completely independent, affordable, high quality network links tend to be hard to come… Read More »

Teams Voice Connectivity for Tenants without PSTN Calling

Update 24/02/2018: Thanks to Paul Lange “Short update on Bring your own Sip Trunk in #MicrosoftTeams from #techsummitfrankfurt – currently in TAP. GA around July according to MS depending on testing. #BRK2080” Expect the sessions to pop up here soon Update 16/12/2017: AudioCodes confirms any of their SBC’s will work with Microsoft Teams. No need… Read More »

AudioCodes CloudBond In Depth Review and Setup Part 2

Hey, Remember that AudioCodes review I did waaaaay back in August then got distracted with PowerShell stuff? Well I’ve had some time to spend working with the unit as well as talking to AudioCodes about the solution in general. Quick Shout out to David at AudioCodes and the guys at Auroz for letting me hold… Read More »