Key Telephone System

In enterprise IT, a key telephone system (KTS) is a telecommunications system that converts a single public switched telephone network (PSTN) line into an array of internal business lines. This basic phone system allows users to use various internal lines from a single telephone desktop set.

Small businesses and sole proprietors who are responsible for choosing their own phone systems often run into some confusion when it comes to analog, digital, and IP technologies. This explains the basics of each technology and allows you to choose the most appropriate phone system for your business with more confidence.