The K-1500P-D can be used on an analog PABX station port or standard C.O. line to receive calls. It can also be used with a dedicated ringdown circuit, such as Viking's DLE-200B, to provide cost effective point-to-point communications.Technical InformationNumber of Analog Phone Lines: 1Total Number of Phone Lines: 1Features: Volume Control, Hearing AidInterfaces/PortsPhone Line (RJ-11): YesNumber of Phone Line (RJ-11) Ports: 1Physical CharacteristicsColor: AshForm Factor: Desktop, Wall MountableHeight: 4"Width: 9"Depth: 4.8"Weight (Approximate): 3 lb