Aastra Ascotel IntelliGate A150 System Manual page 14

Interfaces and Terminals as of I7.8
Point-to-Multipoint Connection with PBX
If a PBX is connected using point-to-multipoint, a direct dial number must be cre-
ated for each MSN number, with all the digits of the MSN number.
NT1: Network Terminal
MSN: Multiple Subscriber Number
U/T: ISDN reference point
AD2: digital terminal interface AD2
a/b: analogue terminal interface
Fig. 4 Basic access in point-to-multipoint configuration, with single-digit direct dial and parallel ter-
minal
Combinations are also possible in the case of several lines, e.g. one line in point-to-
multipoint configuration and the remaining in point-to-point configuration.
Note:
If terminals (e. g. MSN1) are connected in parallel on the T interface,
sion Detection
each another. This also applies in cases where a/b connections are used
on NT1.
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has to be activated as the PBX and the terminal influence
Colli-
System Interfaces