AC power source for operation, and may not work during power and telephone outages. • Do not use your OS200 conference phone in or near water, as this can cause damage to the unit and personal injury through electric shock.
• Intermediate plugs CONNECTING FOR THE FIRST TIME When using the OS200 for the first time, you must first connect the unit to a power supply and analogue phone line using the supplied adaptor and connection cables. This phone does not work if connected to a digital line.
SPEAKER VOLUME During a call, you can press the volume. MANUAL TUNING The OS200 will automatically modify its properties for better quality sound in the room and over the telephone line. However, tuning can be initiated manually by pressing simultaneously (brief noise will be heard).
The either: • Press and the number last dialled will appear automatically. • Enter a telephone number using the keypad. 5. Press 6. Enter a name using the keypad: Press the number that corresponds with the desired letter until you find the right one, pause and then enter the next letter.letter.
EDITING CONTACT LIST 1. Press 2. Scroll to the Phone Book menu 3. Press 4. Using the key select EDIT. 5. Press 6. Scroll to the name you want to edit 7. Press 8. Edit number using the keypad. 9. Press 10.
Mains transformer 12V DC (US) manual-E.p65 ACCESSORIES DESCRIPTIONS ACOUSTICS The OS200 delivers clear audible sound to the user. For optimum results the unit should be positioned accordingly as shown here: • Layout for room sizes up to 30m (323 sq. feet).