Swisscom Classic A21 ISDN, User Manual

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Telephoning
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Listening by loudspeaker
Unlike handsfree, others present in the room can listen in the call, your caller however
only hears what is said through the handset (not what is said in the room).
You are talking on the handset and want others in the room to listen in.
Press to activate the loudspeaker.
Press again to deactivate the loudspeaker.
Replace the handset to terminate the call.
Handset volume
You can adjust the handset loudspeaker volume in 5 steps. Press during a call to
adjust the volume. The selected setting is saved after the end of the call.
Telephone secrecy
During a call you can talk to someone else in the room without the caller hearing.
1. Press during a call. This switches handset secrecy on and your caller cannot hear
you.
2. Press to return to the call.