Erwin Bierens Blog

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How to Configure Direct Routing with Azure Communication Services Mar 12, 2026
Microsoft Teams Platform, Developers & Frontline: What's New at Microsoft Ignite 2025 Dec 16, 2025
Microsoft Teams Security & Fundamentals: What's New at Microsoft Ignite 2025 Dec 15, 2025
Microsoft Teams Chat & Collaboration: What's New at Microsoft Ignite 2025 Dec 12, 2025
Microsoft Teams Devices: What's New at Microsoft Ignite 2025 Dec 11, 2025
Microsoft Teams Rooms: What's New at Microsoft Ignite 2025 Dec 10, 2025
Microsoft Teams Webinars & Town Halls: What's New at Microsoft Ignite 2025 Dec 9, 2025
Microsoft Teams Meetings: What's New at Microsoft Ignite 2025 Dec 8, 2025
Microsoft Teams Phone: What's New at Microsoft Ignite 2025 Dec 5, 2025
Upcoming Change to the Microsoft Teams Desktop Client on Windows: New Module Host for Calling Dec 4, 2025
What’s New in Microsoft Teams Calling, Meetings & Devices – October 2025 Nov 17, 2025
Using Custom Email Aliases in Azure Communication Services Oct 27, 2025
Removing Disabled Accounts from Microsoft Teams on Android Sep 1, 2025
Apple Watch Ultra 2: Seamless, Smart, and Exactly What I Needed 🍏⌚ Jul 15, 2025
My Experience with the Garmin Forerunner 965: Great Hardware, Strange Software Jul 14, 2025
What’s New in Microsoft Teams - Juni 2025 Jul 13, 2025
🐳 Docker Cheatsheet for Daily Management May 19, 2025
JetBrains Rider Cheatsheet (Windows & macOS) May 19, 2025
When Numbers Drive Feelings: My WHOOP Journey Apr 24, 2025
MDEP and AOSP: The Next Step in Teams Devices Management Feb 24, 2025
Creating a Structured Communication Framework in Microsoft Teams Feb 20, 2025
Manage Direct Routing Numbers in Teams Admin Center Feb 10, 2025
What’s New in Microsoft Teams - Januari 2025 Jan 31, 2025
What’s New in Microsoft Teams - November 2024 (Ignite) Nov 30, 2024
What’s New in Microsoft Teams - October 2024 Oct 31, 2024
What’s New in Microsoft Teams - August 2024 Aug 30, 2024
How to clear your Microsoft Teams cache on Windows and MacOS Aug 9, 2024
What’s New in Microsoft Teams - June 2024 Jun 30, 2024
Review: Shokz OpenRun – The Perfect Headset for Every Athlete Mar 5, 2024
Capture console and network logs from your browser Jan 9, 2024
Set-CsPhoneNumberAssignment : An unknown error occurred Aug 21, 2023
No Agents opt-in or Logged In in a Microsoft Teams Call Queue Jun 21, 2023
Etiquette in Microsoft Teams: Best Practices for Virtual Communication May 5, 2023
Microsoft Loop: A new interactive app in Microsoft 365 Apr 3, 2023
Anywhere365 - Troubleshooting your SharePoint application Mar 30, 2023
Microsoft Teams Client Redesign: Improved Performance and Efficiency. Mar 30, 2023
Microsoft Teams Busy on Busy end user setting Mar 17, 2023
Review: Logitech Zone True Wireless Earbuds Mar 1, 2023
Your account is blocked when signing in as guest in Microsoft Teams Mar 1, 2023
Review: Jabra Evolve2 Buds Feb 17, 2023
Maximize Your Microsoft Teams Experience with the Right Licensing: A Guide to Choosing the Right Option Feb 3, 2023
Microsoft Teams Premium is generally available - What is in it for you? Feb 2, 2023
Unlock the Full Potential of Microsoft Teams with Direct Routing: A Complete Guide Jan 31, 2023
Maximize Your Productivity with Microsoft Teams - 5 Tips for Efficient Collaboration Jan 30, 2023
Microsoft Teams Direct Routing IP Addresses Jan 3, 2023
Microsoft Teams - New PowerBi Reporting version 3.0.4 Dec 19, 2022
Cheatsheet - Nmap Network Scanner Nov 29, 2022
Create Azure SQL Server and Database Nov 29, 2022
Microsoft 365 - Assign licenses with PowerShell to users Nov 28, 2022
Microsoft Teams - Direct Routing Root Certificates Update Oct 5, 2022
Audiocodes - Block spam calls Aug 17, 2022
Microsoft Teams - Delegated Persmissions Aug 1, 2022
Microsoft Teams - Chat with yourself Jul 11, 2022
Microsoft Teams - PowerShell Module 4.5.0 Jul 6, 2022
Update Homebrew on MacOS Jul 6, 2022
Microsoft Teams - Using the SIP Gatway Jun 13, 2022
Review: Yealink BH72 Mar 31, 2022
Review: Poly Voyager Focus 2 UC Mar 17, 2022
Microsoft Teams - Assign Direct Routing phone number in TAC Mar 16, 2022
Skype for Business Server 2015 - Cumulative Updates Feb 25, 2022
Microsoft Teams - compact chat modus Feb 16, 2022
Review: Audiocodes C470HD Feb 15, 2022
Microsoft Teams - Outbound Caller-ID Dec 3, 2021
Microsoft Teams - Spam Call Notifications Nov 19, 2021
Microsoft Teams - Unassigned Numbers Oct 26, 2021
FAQ Microsoft Teams with Direct Routing Jun 30, 2021
Skype for Business Server 2019 - Cumulative Updates May 21, 2021
Remove the annoying media overlay popup in Microsoft Teams Apr 29, 2021
Using the unanswered routing when busy in Microsoft Teams Apr 12, 2021
Why do headset suppliers deliver USB Dongles? Apr 8, 2021
How to enable Viva Connections desktop! Mar 31, 2021
Cheatsheet - Forever Mar 30, 2021
Cheatsheet - kismet Mar 30, 2021
Cheatsheet - snmpwalk Mar 30, 2021
Cheatsheet - Wireshark Mar 30, 2021
Using a Call Queue in your Teams channel Mar 30, 2021
The new Poly Sync 20, does it really change the working from home experience? Mar 12, 2021
Setting up tag based routing in Audiocodes Mediant Feb 24, 2021
Troubleshoot No Dialpad in Microsoft Teams Feb 19, 2021
Validate Routing to Microsoft Teams Resource Account Feb 19, 2021
Choosing the right Teams IPPhone Policy Feb 4, 2021
Using the Public Preview features of Microsoft Teams Dec 10, 2020
Transcoding issue on the Audiocodes Mediant Dec 3, 2020
Cheat sheet - Skype for Business Nov 24, 2020
Upgrading the Audiocodes One Voice Operations Center (OVOC) Nov 18, 2020
Bypass the Microsoft Teams Lobby Oct 27, 2020
Jabra Evolve versus the Evolve2 series Oct 23, 2020
Error while moving user from SfB 2015 to SfB 2019 pool Oct 15, 2020
Direct Routing keeps sending Anonymous Oct 5, 2020
Do not bypass the lobby anymore Aug 10, 2020
New features coming to Microsoft Teams EDU Aug 10, 2020
Setup and Create Audiocodes log files Jul 16, 2020
Title Up Your Teams Group Chats Jul 1, 2020
End Microsoft Teams Meeting for all Attendees Apr 15, 2020
Disable Automatic Startup Microsoft Teams for Linux (Ubuntu) Mar 28, 2020
Optimize Outlook for Microsoft Teams Meetings Mar 23, 2020
How to create a Channel in Microsoft Teams EDU Mar 18, 2020
How to create a Team in Microsoft Teams EDU Mar 18, 2020
Online lessons with Microsoft Teams EDU Mar 18, 2020
How to create a Channel in Microsoft Teams Mar 17, 2020
How to create a Team in Microsoft Teams Mar 17, 2020
The tag present in the reparse point buffer is invalid Mar 17, 2020
Using Reverse Number Lookup in Microsoft Teams Mar 11, 2020
Using custom Tags with Microsoft Teams Mar 5, 2020
Skype for Business Edge Server reset connection Feb 11, 2020
How to change compatibility level of a SQL Database Feb 10, 2020
How to obtain your SQL Reporting license key Jan 24, 2020
Enable God Mode for Windows 10 and Windows Server Jan 23, 2020
Microsoft Teams for Linux Jan 23, 2020
Disable .NET Framework 4.8 from Windows Update Jan 21, 2020
Using eDiscovery with Microsoft Teams Jan 20, 2020
Optimize your network for Microsoft Teams Dec 10, 2019
Setup Direct Routing with Microsoft teams Dec 9, 2019
No RingBack when using Microsoft Teams Direct Routing Oct 25, 2019
Lockdown Microsoft Teams Creation Oct 3, 2019
Click to Call is not working for my Teams client Oct 2, 2019
The end of Skype for Business Online Jul 31, 2019
Jabra PanaCast Jun 17, 2019
Priority Notifications in Microsoft Teams Jun 12, 2019
Busy on Busy in Teams May 14, 2019
Migration to Hugo Framework Apr 24, 2019
Upgrade your Office 365 ProPlus to 64-bit Apr 22, 2019
Get the hell out of Islands Mode Apr 18, 2019
Create Team and Channels with PowerShell Apr 12, 2019
Setup Charles Proxy for Microsoft Teams Mar 30, 2019
Microsoft Teams - Live Events Mar 26, 2019
Remove unknown VM image from ESXi Feb 12, 2019
Audiocodes MediaPack Loses Static IP Address Jan 29, 2019
Skype for Business and Microsoft Teams Network Testing Jan 21, 2019
Sending Audio Messages from the Mobile Teams client Jan 9, 2019
Shared Line Appearance in Microsoft Teams Jan 4, 2019
New phone what about Multi Factor Authentication(MFA) in Azure? Jan 2, 2019
How to use Microsoft Teams Templates Dec 31, 2018
Call Park in Microsoft Teams Dec 31, 2018
Microsoft Teams Licensing Guide Dec 17, 2018
Branding your Office365 Login Screen Dec 12, 2018
Changing your presence from the Teams Desktop Client Dec 11, 2018
Route all traffic by OpenVPN Dec 11, 2018
Microsoft Teams administrator roles Dec 10, 2018
Running PowerShell on your RaspberryPi Dec 6, 2018
Skype for Business Online Audio Conferencing - Dial out behavior change Dec 6, 2018
Upgrade Audiocodes OVOC 7.4.328 to 7.6.143 Nov 15, 2018
Error 0x800705b4 in Windows Update Oct 31, 2018
Move VMs between ESXi Hosts with SSH Oct 31, 2018
Setup OpenVPN server in 2 minutes Oct 25, 2018
Error on installing Kali Tools in Ubuntu Oct 25, 2018
How to install and upgrade Office Online Server to the latest version Oct 24, 2018
My Favorites Oct 23, 2018
How to create trusted network for MFA in Office365 Oct 22, 2018
Deploy error Skype for Business Cloud Connector - CredSSP Oct 9, 2018
Be more productive with some new features in Teams Sep 24, 2018
Factory Reset Audiocodes Mediapack 112 by Shell Aug 6, 2018
Reset GoPro Hero 4 Session back to factory default Jun 25, 2018
Leaving guest tenant - Microsoft Teams Jun 20, 2018
Sending a Quick Message from the Command Bar - Microsoft Teams Apr 21, 2018
Update VMWare ESXi from Shell Apr 10, 2018
The New Microsoft Teams & Skype for Business Admin Center Apr 5, 2018
Review: Hidester VPN Mar 31, 2018
Common Area Phones - Skype for Business Online Mar 30, 2018
Quality of Service Config Script for Microsoft Teams Mar 30, 2018
Move your email conversation to Microsoft Teams Mar 30, 2018
Skype for Business – Quick Start Guides (Multi Language) Mar 22, 2018
Review: Jabra evolve 65 Mar 20, 2018
Skype for Business Licensing Guide Mar 20, 2018
Switch Office 2016 to Monthly Targeted Channel Mar 19, 2018
Review: Plantronics Voyager Focus UC Mar 18, 2018
Review: Jabra Evolve 75e MS Mar 13, 2018
New-OfficeWebAppsFarm : Office Online was unable to find the specified certificate Feb 28, 2018
Anonymous Meeting Join in Microsoft Teams Feb 21, 2018
The Command Bar–Microsoft Teams Jan 29, 2018
Have your Microsoft Teams meeting call you back Jan 18, 2018
Mute someone in a Microsoft Teams Meeting Jan 18, 2018
Skype for Business Online Call Queues: Agent Opt In/Out Jan 16, 2018
Activating Teams Calling -Microsoft Teams Jan 12, 2018
Eventid 25073 Enable comfort noise on your trunk (Audiocodes) Jan 11, 2018
Skype for Business Server 2015 CU6 is here! Dec 12, 2017
Can’t sign in to Skype – There was a problem acquiring a personal certificate required to sign in Dec 12, 2017
Unable to process this synchronization cycle in Azure Active Directory because the object deletion threshold was met or exceeded Dec 11, 2017
Network Assessment Tool for Skype for Business and Microsoft Teams Dec 11, 2017
Holidays available for Auto Attendant - Skype for Business Online Dec 1, 2017
Upgrading the Audiocodes EMS (OVOC) Nov 13, 2017
Update Skype for Business 2016 Client - KB4011238 Nov 8, 2017
Microsoft Teams - Connect to Powershell Nov 6, 2017
Microsoft Flow - Skype for Business Connector Oct 23, 2017
Security Updates October 2017 Office- Web Apps and Online Server Oct 11, 2017
Update SQL Server 2014 SP2 constantly fails on Skype for Business Server Oct 3, 2017
Ignite News day 2 Sep 26, 2017
Ignite News day 1 Sep 25, 2017
Public Developer Preview for Microsoft Teams Sep 21, 2017
Enable External (guest) Access for Microsoft Teams Sep 12, 2017
DNS configuration is preventing you from presenting content Sep 11, 2017
Cloud Connector Edition Upgrade Issues Aug 25, 2017
Let’s Encrypt and Skype for Business Aug 14, 2017
What’s fixed in Cloud Connector Edition 2.0.1 Aug 11, 2017
Skype for Business environment running with just one Public IP Aug 11, 2017
Powershell Enable / Disable / Set / Show Windows Web Proxy Aug 8, 2017
How to install and deploy Polycom VVX 5.6.0 firmware in to Skype for Business Jul 21, 2017
Skype for Business Cloud Connector Edition 2.0.0 Jul 19, 2017
Why Microsoft Teams is so great! Jul 18, 2017
How to enable a Domain Admin for Skype for Business Jul 14, 2017
Powerpoint opens off-screen Jun 29, 2017
Microsoft Lync Connectivity Analyzer Jun 14, 2017
Security Updates Skype for Business (Lync) Client - June 2017 Jun 14, 2017
Disable .NET Framework 4.7 from Windows Update Jun 14, 2017
Configuring SEFAUtil - Skype for Business Jun 13, 2017
Simplified port requirements for Skype for Business Online Jun 12, 2017
Skype for Business Setting Up Rights Monitoring Server Jun 12, 2017
New release of debugging tools v7.0.1678.1 Jun 9, 2017
Configure call forwarding on unassigned number ranges in Skype for Business Jun 8, 2017
SIP Error 485 Ambiguous Jun 7, 2017
Network Performance requirements Jun 6, 2017
Cannot insert duplicate key row in object ‘dboAgents’ with unique index ‘IX_Agents_UserSid’ Apr 24, 2017
How to preload attachments for Skype for Business Online meetings Apr 12, 2017
How can I fix error code 0x80310000 for windows 10 mobile update? Apr 12, 2017
QoS troubleshooting with Wireshark Apr 11, 2017
RDCMan to Hyper-V console Apr 5, 2017
Polycom Trio 8800 failed to discover exchange server (Office365) Apr 5, 2017
No presence information in Outlook (Skype for Business) Mar 23, 2017
.NET Framework 4.6.2 is supported with the February 2017 Cumulative Update for Skype for Business Server 2015 Mar 13, 2017
Execution of Scripts is Disabled on this System Mar 7, 2017
Powershell Backup Script Feb 10, 2017
Exchange 2016 Send Connector Ziggo Dec 27, 2016
How to configure IIS ARR for Skype for Business Nov 16, 2016
Installing SharePoint 2013 Foundation Nov 14, 2016
Installing Prerequisites for SQL Server 2016 Nov 2, 2016
Setting up Federation in Skype for Business Oct 11, 2016
Forest Preparation Skype for Business Jun 22, 2016
Challenge yourself to 'Inbox Zero' Jun 15, 2016
How to block Facebook from your PC May 28, 2016
Block the Blue Coat Intermediate CA from Windows May 27, 2016
Privacy and Anonymity May 23, 2016
Yealink Skype for Business Firmware May 23, 2016
Force HTTPS On Your WordPress Site May 12, 2016
OpenVPN in Kali Linux Apr 30, 2016
How to install BeEF on Ubuntu Apr 26, 2016
Deleted Facebook Apr 22, 2016
A Complete List of Microsoft Azure Tools Apr 15, 2016
How to connect an iPhone to Fortigate firewall for tunneling Jan 27, 2016
Travel router with automatic IPVanish VPN connection Jan 8, 2016
OneDrive For Business/SharePoint Sites Trouble shooting Nov 18, 2015
CheatSheet Powershell Oct 11, 2015