The COMtrexx VM is a virtual telecommunication system (Soft PBX). The COMtrexx VM connects various internal devices with various public telecommunication networks, thereby enabling external and internal calls.

In order to use the COMtrexx VM, a floating user licence in the system is required. The 14-day Tryout Mode already provides three user test licences that need to be licensed again when leaving the Tryout Mode or when the 14 days expire.