Frequently Asked Questions Telephony
180
After restarting the OpenCom 100, nothing is indicated on the displays of any
connected terminals.
It takes a short while for the OpenCom 100 to start up.
After the restart, check whether the activity LED flashes at a rate of 10s / 1s. This
flash cycle indicates that the OpenCom 100 has started up correctly and is ready
for operation.
If the OpenCom 100 has not restarted properly, reset the OpenCom 100 to its ori-
ginal factory setting (refer to the chapter entitled Resetting the System Data
starting on page 84).
18.2 Telephony
It is not possible to make external calls.
Check the connection between the NTBA and the OpenCom 100.
In the Configurator, check whether the external S
0
ports are configured correctly
(PBX Configuration: S0 menu):
– Configuration of System- / Multi-terminal access OK?
– Port is connected to the NTBA?
– Faultless Cabling?
– Terminating resistors properly configured?
The OpenCom 100 is connected to an NTBA with a multi-terminal configura-
tion. Why is it not possible to establish external connections?
With the original factory setting, an additional external S
0
port is set for an NTBA in
the system configuration; this additional port will be used first to seize a trunk line.
Deactivate the corresponding S
0
port in the Configurator (PBX Configuration:
S0 menu).
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