PC Client
Supported Operating Systems
Windows Server 2022 Desktop Experience Edition
Windows Server 2019 Desktop Experience Edition
Windows 11
Windows 10 (1809 or higher)
Minimum Hardware Requirements
1.8 GHz Pentium-class processor
SVGA display
2GB Memory
1GB free hard drive space
Network adapter connected to a TCP/IP network
Keyboard and mouse
Note: ultra-wide monitors not supported
Recommended Presence Monitoring Limits
Busy lamp field (BLF) only: 250 Extensions
BLF and Microsoft Teams Availability: 50 extensions
Note: Calendar based “Out of Office” state and publishing “In a call” status to Microsoft Teams are Microsoft Graph API Beta features.
Web Dialing Requirements
| Browser | Supported Version | Extension / Add On |
| Edge (PC) | 87.X | Telephone Number Detection 1.2.5 |
| Google Chrome (PC) | 86.X | Telephone Number Detection 1.2.5 |
| Mozilla Firefoex (PC) | 86.X | Telephone Number Detection 1.2.5 |
| Opera (PC) | 72.X | Telephone Number Detection 1.2.6 |
Citrix and Terminal Services
Supported Operating Systems
Windows Server 2022 Desktop Experience Edition
Windows Server 2019 Desktop Experience Edition
Windows 11
Windows 10 (1809 or higher)
32bit and 64bit variants are supported unless stated otherwise. This information is relevant for Windows Terminal-App-V and Windows Terminal-Remote Application.
Citrix-Application virtualization
Supported Operating systems
Windows Server 2022 Desktop Experience Edition
Windows Server 2019 Desktop Experience Edition
Windows 11
Windows 10 (1809 or higher)
Citrix-Session virtualization/Standard Terminal Services
Supported Operating Systems
Windows Server 2022 Desktop Experience Edition
Windows Server 2019 Desktop Experience Edition
Windows 11
Windows 10 (1809 or higher)