Voice for Windows requirements

Software requirements

• Windows 10 and 11 are supported

• .NET framework version 4.5.2 or above

• Software installation requires Administrator privileges

Hardware requirements

• Processor: 1 GHz

• RAM: 512 MB

• Disk space (minimum):

  • 4.5 GB for .NET installation, and for Voice for Windows

The application size on disk is 110 MB.

The selected Windows audio devices are used to handle the audio in a call. The used devices should be able to support professional sound.

Firewall configuration

When a Firewall is running rules “inside-to-outside”, traffic from Clients to Enreach Data Center needs to be allowed. If a router or firewall is SIP-aware or SIP ALG-enabled, this should be turned off.

The following traffic should be allowed from clients to Enreach Services:

Workstation Firewalls

During the installation, required firewall rules are created to the Windows Firewall. If there is a third-party firewall installed, the following rules should be created for Voice for Windows:

Quality of Service

By default, the connection between Voice for Windows and the Enreach data center is routed via public Internet. To ensure sufficient call quality make sure that the Internet connection of the client network has sufficient bandwidth. Under heavy load, prioritizing audio traffic of Voice for Windows (SRTP) is recommended.

In cases where dedicated data connection between the customer network and Enreach DataCenter is valid, separate traffic specification document should be created.

Audio traffic (RTP packets) are not marked with DSCP by Voice for Windows. Classification and marking of voice traffic should be done in network. If priority queuing is used for audio traffic, enough bandwidth must be configured for the priority queue. The bandwidth requirement of one concurrent voice call is 100 kbps.