Troubleshooting
78
Consult the manual as required
Troubleshooting
Incorrect date and time are displayed
Set the correct time in the settings menu (
→
p. 62).
The number of a caller is not displayed
Call is transmitted without caller’s number, e.g. an analogue call, or the caller has
switched off the caller ID function.
Short tones during a call
A second call is being signalled. Please refer to the section titled Making several
connections
(
→
p. 23) to find out about possible operating steps.
or
You have activated monitoring or handsfree operation
A function does not work
It is possible that the function has not yet been activated by your system administra-
tor.
Telephone cuts off prematurely when programming
No key has been pressed for approx. 60 seconds. This will terminate every pro-
gramming procedure. You also terminate programming if you answer a call during
the procedure.
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