Ascotel IntelliGate 2025/2045/2065
100 Networking the Systems Part 1
4.7.2 Break-Out
An outgoing external connection is routed into the public ISDN only at the PINX
that is closest to the call destination. As the path in the public network is shorter,
call charges can be saved in this way.
For more on this subject, see "Break-Out", page 348.
Fig. 1.38: Break-out: the shortest connection to a subscriber in the public ISDN
4.7.3 Break-In (Direct Dialling in for Virtual PISN
Subscribers)
An incoming connection from the outside is routed into the PISN at the PINX clos-
est to the calling party. For this the calling party must know the correct dial-in
number for the PISN. This number can be displayed to him as a CLIP number, for
example when calling from the PISN. Typical break-in applications:
• A company with several different locations wishes to present itself to the out-
side through one location only.
• Traffic from a virtually networked system to other systems in the leased-line
network is always to be routed via the nearest system in the private network.
PINX 1
PINX 3
PINX 2
Public network
PISN
Geneva
Zurich
Kloten
haz0673aaena0
PINX 1 PINX 2 PINX 3
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