Konftel 50 – practical conference unit for the office.  The unit's perfect sound quality makes this the smarter way to hold meetings. The Konftel 50 is a flexible unit – perfect for efficient audio conferences from your desk or in smaller meeting rooms. Connects to digital and IP system phones, DECT and mobile phones. For connection to computers too. The Konftel 50 will work with most PBXs by connecting to the handset port on your digital phone set. The included switch box allows you to change between speaking hands-free and using the handset at the push of a button, or connect a headset if you prefer. An analog port is not required to use the Konftel 50.

Key Features:

• Connects directly to your Digital and IP phone set. (switch box included)
• Simple to connect and use
• No extra phone line is required
• Keypad with volume and mute controls
• Can be used with most cordless and cellular telephones (cable required)
• Includes PC connection for IP telephony applications
• Crystal clear sound provided by OmniSound® technology
• Full Duplex
• 2 year warranty

Technical Data:

• Power supply: Transformer 120 V AC/12 V DC, 700 mA. Electrical cable 20 ft (6 meters), modular 4/4 (RJ-11).
• Connection: Analog in/out 10 ft (3 meters), modular 6/6 (RJ-45). Switchbox with modular 4/4 (RJ-11), 20 inches (0.5 meter).
• Compatibility: Can be connected to a digital phone set under virtually any PBX.
• Approval: FCC, UL and CSA.
• Loudspeaker volume: Adjusts to 15 levels.
• Microphone volume: Adjusts to 5 levels.
• Reception area: Microphone < 300 sq ft (30 m2).
• Rec. room conditions: Reverberation time: < 0.5 sec. Background noise: < 45 dBA.
• Temperature: 41°–104° Fahrenheit.
• Size: 9.15 inches (232 mm) diameter.
• Weight: 1.6 lbs.
• Color: Seashell white.

For more details see Konftel 50 datasheet