|Command communications comswitch 5500-Automatic Voice/Data switching device plus distinctive ring capability. Automatic line sharing - Lets up to 4 devices - usually a telephone, answering machine, fax and modem share a single phone line. Distinctive Ring mode for simple line sharing - When you add a second or third phone number to your single line, the comswitch 5500 works smoothly with Distinctive Ring service offered by most local phone companies . Buy your desired command communications cs5500 on best discount price at our store. And get delivered it to any where in USA & Canada.