The new Konftel 250 is the perfect choice for conference calls with excellent sound quality over analogue telephone lines. Its high performance and innovative, expandable features will convince you.

The Konftel 250 is equipped with Konftel's patented OmniSound® 2.0 sound system for crystal clear sound quality. The conference guide makes it very easy to organize multi-party calls or call saved participant groups.
In addition, the Konftel 250 offers a built-in function that allows you to record conversations on an SD memory card.

For larger conference rooms, there are also additional microphones that extend the recording range. Telephone conferences are effective and not only save time and travel costs, they also protect the environment.

SOUND DATA
OmniSound® 2.0.
Microphone: Omnidirectional, 360°.
Recording area: up to 30 m2, > 10 people.
Volume: 90 dB SPL 0.5 m (RMS).
Frequency range: 200-3400 Hz.
Equalizer: soft, neutral, hard.

CONNECTIONS
Analogue telephone connection: 6/6 modular (RJ11) to the public telephone network or analogue PBX connection.
Power supply: power adapter 100-240 V AC/14 V DC, 6 m.
Additional microphones: modular 4/4.

CONTACT
Phone book: 50 contacts.
Discussion groups: 20 groups.

CONVERSATION RECORDING
Supports recording on SD memory card up to 2 GB.

THEFT PROTECTION
Anti-theft protection: Kensington security slot.

DIMENSIONS
Size: Diameter: 240 mm, Height: 77 mm.
Weight: 1kg.
Color: charcoal black.

DISPLAY AND KEYPAD
Display: Backlit graphic LCD, 128x64.
Keypad: Alphanumeric 0-9, *, #, handset on/off, mute, hold, volume up, volume down, 5 keys for navigation in the menu system, phone book, conference guide.

APPROVALS
Telecom: TBR21, 47 CFR Part 68/TIA, IC CS-03 Issue 1999/01/01.
EMC: EN301 489-1.3. EN 300 220-1.2, FCC Subpart B and C. Electrical protection class: UL 60950-1, EN 60950-1:2001.

ENVIRONMENTAL CONDITIONS
Temperature: 5° – 40° C.
Humidity: 20 – 80% condensation-free