User guide

1424-EN/LZT 103 089 A3 2012-02-23
User Manual
Cordless Phones for MX-ONE™
21
4.2 Turn the Audible Signal On/Off
Prerequisite: The handset is in idle mode:
Tip: While in a menu, press to return to idle mode.
A long press on , or , changes between ring signal on/off.
The icon indicates a silenced handset.
4.3 Lock/Unlock the Keypad
4.3.1 Lock/Unlock the Keypad in Idle Mode
To prevent accidentally pressing keys and making a call, the keys can be locked.
Lock Keypad
1Press .
2 Press "Lock".
Unlock Keypad
1Press .
2 Press "Yes".
Note: It is possible to answer/end a call while the keypad is locked. If the handset is configured
via the WinPDM it is also possible to call a pre-defined emergency number while the keypad is
locked. See handset’s Configuration Manual.
4.3.2 Lock/Unlock the Keypad during a Call
To prevent accidentally pressing keys, the keys can be locked during a call. This can be useful
when a headset is used and the handset is attached to a pocket or belt.
Lock keypad
1 Long press .
2 Press "Lock".
Unlock keypad
1Press .
2 Press "Yes".
Tip: It is possible to use the volume buttons and the mute button during the call. If the DT423/
DT433 is used, it is also possible to use the alarm button.
4.4 Lock/Unlock the Handset
The handset can be protected for unauthorized use. If this function is activated, a PIN code has
to be entered for example to switch on the handset, to answer an incoming call etc. The default
phone lock code (0000) can be changed to any 4 - 8 digit personalized code.
Note: If configured in the handset, it is possible to call a pre-defined emergency number while
the handset is locked. See the handset’s Configuration Manual. If the DT423 or DT433 is used,
it is also possible to use the Alarm button.
1 Press "Menu".