Siemens HiPath 4000 Operating Instructions Manual page 56

Calling mobile
telephone
Call
Called mobile
telephone
Silent
c
u
or
k k
46
Activating and deactivating
Please proceed as shown in the overview on page 44 to activate and
deactivate walkie-talkie mode.
Attention:
Direct call is not possible if the walkie-talkie mode is activated.
Making and answering calls
Press the display key.
The call is signalled by a ringing tone and a message on the display.
Press the display key. The ringing tone is deactivated and the call is
signalled by a message on the display.
Press the talk key or speakerphone key.
The two mobile telephones are connected to each other.
Note:
• The call lasts for just 20 seconds and must be answered.
• Although all mobile telephones are called, a call can only be
performed between two of them.