
151
Telephony
Frequently Asked Questions
Question: The mains plug is
connected, the mains socket is
supplying output, but the
Comfort Pro S still does not
function.
S
D A N G E R !
This device contains hazardous voltages. To make the system dead,
remove the power plug from the socket.
Open the housing (see
Opening and Closing Comfort Pro S
starting on page 27). Is the power LED illuminated?
If not, contact your service centre. The AC adapter plug of the
Comfort Pro S may be defective.
Question: After restarting the
Comfort Pro S, nothing is
indicated on the displays of any
connected terminals.
It takes a short while for the Comfort Pro S to start up.
After the restart, check whether the activity LED blinks at a rate of
10s / 1s. This indicates that the Comfort Pro S has started up cor-
rectly and is ready for operation. If the activity LED is not illuminated
or the LED is dark after a short period of rhythmical blinking or the
LED blinks 3 times fast in the meantime, the restart was not suc-
cessful.
If the Comfort Pro S has not restarted properly, reset the
Comfort Pro S to its original factory setting (refer to the chapter
entitled
Resetting the System Data
starting on page 72).
Telephony
Question: It is not possible to
make external calls.
Check the connection between the NTBA and the Comfort Pro S.
In the
Configurator
, check whether the external S
0
ports are con-
figured correctly (
PBX Configuration: S
0
menu):
Содержание Comfort Pro S
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