MCK CITEL Definity EXTender 1000 Switch equips teleworkers and other single users seamless remote access to the corporate voice and data networks and associated applications. The Definity EXTender 1000 is a cost-effective option for businesses managing remote workers lacking a broadband Internet connection. Setup and configuration is made a simple process. Simply connect Definity EXTender 1000 remote units at the remote location over an analog POTS line, and EXTender 1000 switch units at the central PBX location