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Telephony
221
Telephony
Question: It is not possible to make external calls.
Check the connection between the NTBA and the Forum 523/524.
In the Configurator, check whether the external S
ports are
0
configured correctly (Telephony: Ports: S
menu):
0
– Configuration of System- / Multi-terminal access OK?
– Port is connected to the NTBA?
– Faultless Cabling?
– Terminating resistors properly configured?
Check the status of the trunks. In the Configurator, open the Sys-
tem Info: Telephony: Trunks page. For the Trunks used for
the "External trunk" route the Status indicator should display a
small green hook symbol.
Question: The Forum 523/524 is connected to an NTBA with a
multi-terminal configuration. Why is it not possible to establish
external connections?
With the original factory setting, an additional external S
port is
0
set for an NTBA in the communications system configuration; this
additional port will be used first to seize a trunk line.
Deactivate the corresponding S
port in the Configurator
0
(Telephony: Ports: S
menu).
0
Question: One of the telephones is not functioning at all.
Make sure the telephone has been properly connected. Please
read the explanations under Port Assignment, Termination,
Cable Length starting on page 48.
Check also whether the appropriate port has been configured cor-
rectly in the Configurator (Telephony: Ports menu). For IP sys-
tem telephones, verify if PoE is enabled in the Network: LAN
menu. Please pay attention to the notes about the Power Supply
Unit under Forum Phone 515 / 525 / 535: Extensions and Acces-
sories starting on page 61.
Frequently Asked Questions
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