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278 3-4. Using the hands-free phone system (for cellular phone) MATRIX_U Setting ringtone volume Select “Ringtone Volume” using . Change the ringtone volume. To decrease the volume: Turn counterclockwise. To increase the volume: Turn clockwise. Setting ringtone Select “Ringtone” using . Using , select a ringtone (1 - 3). To set the selected ringtone, press . Transferring call histories Select “Transfer Histories” using and press (YES). ■ Phone number Up to 1000 names can be stored. ■ Call history Up to 10 numbers can be stored in each of the outgoing, incoming and ■ Limitation of number of digits A phone number that exceeds 24 digits cannot be registered. STEP 1 STEP 2 STEP 1 STEP 2 |