Aastra DT690 User's Guide Page 35

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SwitchingOnandOff
4 Switching On and Off
This section describes how to switch on and off the telephone.
Note: If the message No System is displayed you cannot make or answer
calls. Depending on system programming, your phone can be
automatically locked. To unlock the phone, enter your four-digit code
(factory default is “0000”).
4.1 Switching on
To switch on the telephone:
1. Press and hold
.
2. Press Yes.
After a few seconds, the display turns blank. Now your phone is switched
on.
4.2 Switching off
To switch off the telephone:
1. Press and hold
2. Press Yes.
After a few seconds, the display turns blank. Now your phone is switched
off.
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1424-EN/LZT 103 092 Uen A1 2008-10-27
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