The Comdial FX platform is a powerful system that can be configured for the smallest of companies to the largest. It can easily and quickly expand to a capacity of 544 ports! The FX not only has over 200 built in features as the DSUII platform, but offers the capability of networking with other Comdial FX phone systems off site at other locations using a dedicated high speed internet connection. This provides you with the added features of by-passing long distance charges to out of town or out of state remote locations as well as being able to utilize many other features such as camp-on, one touch intercom access and much more to those remote locations.