Specifications: The airway base station/controller is the brain of the airway cordless system. All communication on the system, through handsets or phonejacks, is managed by the controller. It is the Central access point to which all other devices communicate. The controller acts as a ksu, which processes and manages all voice traffic throughout the system. One powerful device can handle all your voice and fax wireless needs. It gives upto 16 handsets wireless access to upto four phone lines. Features: Supports up to four telephone lines and 16 handsets Transmits and receives to and from handsets and phonejacks Operates with existing wired telephones Dynamic bandwidth allocation for optimized voice traffic