QB FXS Expansion Module

This QBS2 Expansion Module adds (2) Analog Extension (Phone) Ports to QB system servers. Items # QBS2

Up to (2) modules maybe installed in the QB1 Server and Up to (4) modules maybe installed in the QB2 Server.  Contact us for assistance configuring QB system servers.  Customer quotes are available for QB3 and QB4 systems.

Learn more about XBLUE QB Series phone systems