System Requirements

Minimum Server Specifications-Small Single Site

These minimum server specifications are valid for the following parameters:

  • Single site
  • Up to 30 trunks
  • Up to 500 calls per hour
  • Up to 50 extensions / users

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019
32 bit and 64 bit

Note: ucplus is not supported on a Windows server that is also configured as a Windows domain controller.

Note: Windows 11 and Windows Server 2022 are not supported when used in conjunction with NVMe drives. For more information see here.

Minimum Hardware Requirements

  • Processor:As advised by Microsoft for Windows Operating Systems specified above
  • 4GB Memory
  • 20GB free hard drive space
  • Network adapter connected to a TCP/IP network (not wireless)

Virtual environments are supported e.g.VMware,Hyper-V. 

Note:A small single site server installation may co-exist with other applications on a shared server. However, if the machine experiences performance issues then a dedicated server should be used.


Minimum Server Specifications-Medium Multi Site

These minimum server specifications are valid for the following parameters:

  • Up to 6 sites
  • Up to 150 trunks across combined sites
  • Up to 2000 calls per hour
  • Up to 400 extensions / users

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019
32 bit and 64 bit

Note: ucplus is not supported on a Windows server that is also configured as a Windows domain controller.

Note: Windows 11 and Windows Server 2022 are not supported when used in conjunction with NVMe drives. For more information see here.

Minimum Hardware Requirements

  • Processor:As advised by Microsoft for Windows Operating Systems specified above
  • 4GB Memory
  • 20GB free hard drive space
  • Network adapter connected to a TCP/IP network (not wireless)

Virtual environments are supported e.g.VMware,Hyper-V. 

Note: A dedicated server is required for medium server installations.


Minimum Server Specifications-Large Multi Site

These minimum server specifications are valid for the following parameters:

  • Up to 10 sites
  • Up to 300 trunks across combined sites
  • Up to 4000 calls per hour
  • Up to 1000 extensions / users

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019
64 bit only

Note: ucplus is not supported on a Windows server that is also configured as a Windows domain controller.

Note: Windows 11 and Windows Server 2022 are not supported when used in conjunction with NVMe drives. For more information see here.

Minimum Hardware Requirements

  • Processor:As advised by Microsoft for Windows Operating Systems specified above
  • 4GB Memory
  • 20GB free hard drive space
  • Network adapter connected to a TCP/IP network (not wireless)

Virtual environments are supported e.g.VMware,Hyper-V. 

Note:A dedicated server is required for medium server installations.


ucplus PC Client

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019

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


ucplus Mac Client

Supported Operating Systems

  • macOS Version 10.14:Mojave
  • macOS Version 10.13:High Sierra
  • macOS Version 10.12:Sierra

Minimum Hardware Requirements

  • Mac with an Intel processor
  • SVGA display
  • 1GB Memory
  • 1GB free hard drive space
  • Network adapter connected to a TCP/IP network
  • Keyboard and mouse

ucplus Operator Console PC Client

Supported Operating Systems

  • Windows 10
32 bit and 64 bit

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

Maximum Operators per Server

  • Up to 6 ucplus Operator Console on a small site
  • Up to 8 ucplus Operator Console on a medium site
  • Up to 10 ucplus Operator Console on a large site
Note:Terminal Services / Citrix are not supported with ucplus Operator Console

ucplus TAPI Driver

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019

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

Salesforce Adapter

Supported Operating Systems

  • Windows 11
  • Windows 10
  • Windows Server 2022
  • Windows Server 2019

Supported Browsers

  • Microsoft Edge
  • Google Chrome
  • Opera

License Type

  • ucplus Fusion

Web Dialing

Supported Versions

Browser Supported Versions Extension / Add-on
Microsoft Edge Legacy (PC) 87.X Telephone Number Detection 1.2.5
Google Chrome (PC and Mac) 86.X Telephone Number Detection 1.2.5
Mozilla FireFox (PC) 86.X Telephone Number Detection 1.2.5
Opera (PC and Mac) 72.X Telephone Number Detection 1.2.6



Microsoft Components

.NET Framework

  • NET 4.5 Framework until V3.1 (required and shipped with software)
  • NET 4.8 Framework from V3.2 (required and shipped with software)
  • Microsoft Visual C++ 2015-2019 Redistributable

Note: ucplus Server makes use of a lightweight embedded database.