DPT Overview 1-191.1 ConfigurationWhen using the headsetThe Panasonic Digital Super Hybrid System supports the use of a headset with aproprietary telephone (PT). When you use the headset (optional), you should switch theselection mode first. Selection is explained in the “Handset/Headset Selection” in StationProgramming (Section 2).To change to the headset modePress: [PROGRAM] [9] [9] [9] [2] [STORE] [PROGRAM].Changing the ringing tone of a CO buttonThere are eight ringer frequencies available for each CO (Loop-CO, Single-CO) button.If you wish to change them, refer to the “Ringing Tone Selection for CO Buttons” inStation Programming (Section 2).Volume Control — Handset Receiver/Headset/Ringer/SpeakerAllows you to adjust the following volumes as required.— Handset Receiver volume (levels 1 through 4)— Headset volume (levels 1 through 4)— Ringer volume (levels 0 through 3)— Speaker volume (levels 1 through 12)If your digital proprietary telephone is provided with a display (display DPT), the volumelevel is indicated on the display by the number of asterisks. For ringer volume adjustment,three levels (OFF/LOW/HIGH) are available with the KX-T7420 and KX-T7425.To adjust the handset receiver volume1. Lift the handset.2. Rotate the Jog Dial in the desired direction.• The display shows:(— volume level 3)• You may also adjust the handset receiver volume during aconversation using the handset receiver.Handset:***12
