Swisscom Aton CLT418ISDN, User Manual

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Telephoning
If you want to carry the handset around in your pocket, you can activate the key lock.
This prevents you inadvertently dialling a number.
1. Press and hold down . The display shows
KEYPAD LOCKED
.
2. To unlock the keypad, press the softkey under , then press .
Note If the keypad is locked,
 you can dial emergency numbers (in call preparation only) and
incoming calls can still be accepted.
 you cannot dial a number or access menus.
You can call other handsets which are registered with your base station. This allows
you to make internal calls free of charge.
1.
Press
Int
, dial the relevant handset number and press to confirm. Pressing
Int
automatically dials the second handset if only two handsets are registered with the
base station.
2. Press to end the call.
Note  If you receive an external call while conducting an internal call, the
base station and every handset which is not in use will ring.
 If a handset is in use, you will hear a signal alerting you to the incoming
external call. Press the softkey under
to end
the internal call and accept the external call. Or press the softkey
under
to put the internal call on hold or
under to reject the external call on this handset.