Aastra DT390 User's Guide download pdf (Page 29)

CORDLESS PHONE FOR MX-ONE™

29 1424-EN/LZT 103 087 Uen F2 2012-03-02

4 Switching On and Off

This chapter describes how to switch on and off the phone.

Note: If the message No System is displayed you cannot make or

answer calls. Depending on system programming, your phone

can be locked automatically. To unlock the phone, enter your four

digit code (factory default is “0000”).

4.1 Switching On

To switch on the phone, do the following:

1. Press and hold .

The phone will vibrate when it is on and the display lights up. The

following confirmation message is displayed: DT390 Switch on?.

2. Press Yes to confirm.

If the phone does not switch on, or if the battery icon indicates low

level, charge the battery and try again.

4.2 Switching Off

To switch off the phone, do the following:

1. In idle mode, press and hold .

The following confirmation message is displayed: Switch off?.

2. Press Yes to confirm.

The phone is switched off.

Note: Pressing from a menu will return you to idle mode.

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Aastra DT390 User's Guide Page 29