Planning Information
G8-S0/G3-S0-I
8
1.1/1010
2. PABX (Point-to-Point)
If a point-to-point connection is used, parallel connections between the Intercom Servers are pos-
sible (
see ”Configuration Examples” on page 14
).
The ISDN Basic Rate Interface
Option 1:
Option 2:
Option 1
Option 2
OPTIMAL
The Intercom Server as
only equipment at the
ISDN basic rate interface.
CORRECT
The Intercom Server is
connected to a PABX sub-
scriber of a telephone
system.
NOT POSSIBLE
It is not possible to con-
nect multiple equipment
to the ISDN basic rate
interface.
The Intercom Server is connected to the ISDN Basic Rate Interface (point-to-multipoint or point-
to-point configuration,
see ”System Configuration” on page 7
) as only equipment.
This is the optimal configuration, because the Intercom Server always has a free line available.
Problems may occur with a PABX system, if the PABX system does not transfer the number of a
caller exactly the way it would be necessary to call in the other direction. With some systems pro-
blems may occur with the exchange number for dialling out.
This configuration is not recommended for use of the
!
ISDN
GE 80 0
GE 30 0
NT
ISDN
NT
NT
NT
ISDN
GE 80 0
GE 30 0
PABX
centra l
e.g.
Fax
e.g.
Phone
NT
ISDN
MSN
MSN
GE 80 0
GE 30 0
e.g.
Phone
