switel DE31 Series, Руководство по эксплуатации

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Telephoning
Muting the microphone in the handset
The microphone in the handset can be activated and deactivated during a
telephone conversation.
Deactivate the microphone (muting
on)
Activate the microphone
Key lock
The key lock feature prevents functions assigned to buttons being acti-
vated accidentally.
2 sec. Activate the key lock function
Incoming calls can still be taken in the normal way even when the
key lock function is activated.
2 sec. Deactivate the key lock function
Handset ringing tone
You can deactivate the handset ringing tone.
2 sec. Deactivate the ringing melody
2 sec. Activate the ringing melody
Searching for the handset (Paging)
If you have mislaid your handset, you can locate it again with the aid of a
search tone.
Base station , Start the search tone
or Stop the search tone