Office365

How to Migrate DHCP Service from Cisco Core Switch to Server 2022

This post is to illustrate the process to migrate DHCP Service from Cisco Core Switch to Window Server 2022, it includes the Cisco IP Phone DHCP option 150 and Option 66. Environment Source: Cisco Catalyst Layer 3 switch Destination: Window Server 2022 Active Directory Domain Controller IP Phone DHCP options were configured on the Core …

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How to Migrate DHCP Service from Server 2016 to Server 2022

This post is to document the process to migrate DHCP service from Windows Server 2016 to Windows Server 2022, as well as the related DHCP Failover and DHCP Forwarding/IP-helper configuration. Microsoft’s DHCP services haven’t changed much in the past 20 years, it would be a similar procedure if you are using the old version such …

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How to Configure RADIUS Authentication / NPS Server 2022 with Ubiquiti

This post is to demonstrate the steps of configuring Radius Authentication / NPS Server 2022 with Ubiquiti Wireless. Note: For the basic installation process of the Network Policy Server, please check the previous post, it was on Server 2019 but the installation procedure is the same, this time you do NOT need to run the …

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Microsoft Teams Direct Routing Audiocodes SBC Certificates Explanation

Object This post is to explain the certificates used in Audiocodes SBC when you are configuring with Microsoft Teams Directing. Certificate configuration is essential for a secure SIP TLS connection between Microsoft Teams and your local SBC in both directions, as the “Phone System Direct Routing” interface allows ONLY TLS connections for SIP traffic from …

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How to Remove Hybrid Modern Authentication Presence

Object Teams users experiences intermittent Presence issues after we decommissioned the legacy Skype for Business infrastructure, everything is fine but the user presence. Environment All the external and internal DNS has already been updated to Office365 Teams Only, CsHostingProvider has been removed on Skype for Server SharedSIPAddressSpace has been disabled in CSTenantFederationConfiguration Teams Upgrade policy …

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Microsoft Teams Direct Routing Common Issues

Object Microsoft Teams Directing Routing enables you to connect a supported Session Board Controller (SBC) to the Microsoft Phone system, there are multiple vendors that offer Microsoft Certified SBC solutions such as Audiocodes, Ribbon, and even Cisco CUBE. The below examples lists the common issues when implementing Audiocodes SBC using direct routing. 1. Communication issue …

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How to fix This organization cannot be upgraded to TeamsOnly

Issue At the end of Microsoft Teams migration – Skype for Business decommissioning process, we were trying to set up the global TeamsUpgradePolicy to “TeamsOnly”, we got this error “This organization cannot be upgraded to TeamsOnly at the Tennant level because this is an on-premise deployment of Skype for Business detected in 1 or more …

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How to – Domain Name UPN Email Primary SMTP SIP Change

It is common when a business acquisition or merging occurs, to IT professionals, we would automate our task via scripting rather than going through each user’s properties and changing everything, the below simple scripts may help when you want to “bulk change” domain name, UPN, Email Attribute, Primary SMTP, SIP address in a Hybrid environment: …

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