- Konftel 50 conference phone- Connects directly to your Digital and IP phone set- Simple to connect and use- No extra phone line required- Keypad with volume and mute controls- Can be used with most cordless and cellular phones (cable required)- Includes PC connection for IP telephony applications- Crystal clear sound provided by OmniSound technology- Full-duplex- Conference phone system- Analog Connection for standard calls- Computer connection for VoIP calls- Compatible with DECT cordless and cell phones