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VoIP gateway IP400 version 5.01
5
Configuration of the ISDN interfaces
The IP 400 has two “virtual” interfaces, whose configuration is described in sec-
tion 5.3 “Considerations on the configuration of the virtual interfaces” from
page 66.
The IP 400 has ISDN interfaces.
To configure the ISDN interfaces you first need to decide about the following
points:
• Which devices you want to connect to the gateway. That could be tele-
phones, PBXs, network terminations from your ISDN network provider, or
other ISDN terminal equipment.
• Whether the ISDN connections are to be used exclusively for voice connec-
tions or whether one of them is also to be used for an ISDN/PPP connection
for data routing.
This is configured in the “ISDN Interfaces” area of the configuration applet.
... for experts
S
0
•
tel1
and
tel2
can be operated in TE and NT mode with or without power
supply and termination.
•
PPP
and
S/T
can only be used in TE mode.
•
tel1
,
tel2
,
PPP
and
S/T
can be operated in point-to-point and point-to-
multipoint mode.
•
tel1
,
tel2
,
PPP
and
S/T
can be operated in DSS1 and QSIG signalling
mode (also mixed).
•
NT
(
Line Emulation
) switches on the NT mode for layers 1, 2 and 3.
•
Power
switches on the power supply for terminal equipment on the bus
(in NT mode only, maximum 4 W).
• 100 Ohm
Termination
switches on the bus termination.
•
Permanent activation
(in TE mode only) activates the line permanently
(clock).
•
Point to Point
switches on the point to point mode.