Systel for Retell 3011/22 system and Retell 3011/22 office and tiptel.com 411/811/822 XT / rackGroßes, illuminated graphic display Convenient, intuitive menu menu-based operation of the PBX voicemail Convenient access to the main directory of the telephone system with up to 5,000 entries * Local phone for 1,000 names, each with up to 3 numbers (work, home, mobile) to manage different user profiles for quick switching of the device status 10 programmable function keys, expandable by up to three additional modules Retell KM-30 connectors for corded and wireless headset third-party CTI via TelefonanlageU.a. Busy internal display programmable menu navigation of the answering machine in the VCM module