Telephoning
General Information
31
3.1.4 Muting
During a call you can switch your handset's microphone off with
Mute
. The person
at the other end of the line can no longer hear you.
Unmute
switches it back on.
3.1.5 Visual Call Indicator
The receiver symbol
¢
in the display flashes and the display illumination is
switched on to indicate an incoming call.
3.1.6 Time/Alarm
In the idle state, the display shows the current communications system’s time. The
time is automatically updated after an external call. After going into operation for
the first time or changing the batteries, it can take a moment before the
OpenCom 100 communications system transmits the current time.
The OpenPhone 27 also has a programmable alarm function. For details, please
refer to page 79.
3.1.7 Internal and External Telephone Numbers
The internal and external telephone numbers at which you can be reached are
assigned when your OpenCom 100 communications system is set up.
3.1.8 Multiple Connections
Two calls can be made to your handset simultaneously. This means that you can
telephone with two parties, toggle between these connections or initiate a 3-party
conference. Any further callers will hear a busy signal.
If the system administrator has configured a call queue, further calls will enter this
queue (see also the section
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