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12 Topcom Butler 4270/Twin/Triple/Quattro
Topcom Butler 4270/Twin/Triple/Quattro
3.8 Secrecy function (Mute function)
During conversation you can turn off the microphone so that the person on the other side of
the line will not hear you:
•Select ‘MUTE’ using the left menu key to deactivate the microphone.
• The mute icon appears on the display
• Press the left menu key ‘UNMUTE’ again to activate the microphone again
3.9 Locating a handset (paging function)
If you forgot where you left your handset you can press the paging key on the base. All
handset registered with the base will ring for about 30 seconds.
The LED on the base will flash. To stop the ringer, press any key on the handset.
3.10 Keypad lock
You can lock the keypad to prevent accidental dialling while carrying the handset around.
• Press and hold the ‘#’-key until ‘KEY LOCKED’ and icon appears
• To unlock press and hold the ‘#’-key again until ‘KEY UNLOCKED’ appears
3.11 Using the alphanumerical keypad
With your telephone you can also enter alphanumeric characters. This is useful for entering
a name into the phonebook, giving a name to a hand-set, …
To select a letter, press the corresponding key as many times as is necessary. For example
to select an ‘A’, press ‘2’ once, to select a ‘B’, press ‘2’ twice and so on. To select ‘A’ and then
B consecutively, select ‘A’, wait until the cursor moves on to the next character, then press
‘2’ twice.
To select a space, press 0.
To change from small letters to capital or from capital to digits, press and hold the ‘*’ key.
abc ABC 123
hold “*”-key
hold “*”-key
hold “*”-key
You can also consult the called list by the menu (See § “6 Calls list”) for
more details.