Dees developed the DSI-375, Meridian Custom Ringer, in conjunction
with Northern Telecom. The DSI monitors the DMS-100™ or SL-100™
digital Centrex lines servicing Meridian™ Business Sets (MBS).
The DSI is equipped with a variable frequency electronic ringer and the
ability to close a set of contacts which can be used to control auxiliary
equipment such as aloud ringer or lamp. The DSI will customize the
ringing performance and enhance the functionality of your MBS.
Introduction
