Private networking using PRI SL-1 /
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Modular ICS 7.1 Installer Guide
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NCRI count allows a call to be forwarded in the network
up to five times before the system releases the call as
undeliverable. However if TAT or TRO occur, the counter
gets reset, as well. This counter is hard-coded.
Private Network Tandem calling
Tandem networking is a chained network established between
two or more MICS systems. All the systems are connected via
PRI SL-1 lines.
In the network example shown below, nodes A, B, and E are
in one location, Nodes C, D, and F are in a second location.
The two systems are tied together between nodes A and C.
Nodes A and C are also connected to the local public network.
Tandem network
This configuration allows both local network users and remote
users on the public network to access the remote PSTNs
through the private lines, thus avoiding public call charges.
Lines to public
network
Public
Network
private trunk
private trunk
Norstar
Norstar
Public
Network
private trunk
Norstar
private trunk
Norstar
Lines to public
network
Norstar
private trunk
Calgary
Norstar
Ottawa
A
B
E
C
D
F
Calgary network
routes only area
codes 403 and
604
Public: 403-765-XXXX
Private ID: 395
Ottawa network
routes all area
codes except
403 and 604
Public: 403-762-XXXX
Private ID: 392
Public: 403-761-XXXX
Private ID: 391
Public: 613-766-XXXX
Private ID: 396
Public: 613-764-XXXX
Private ID: 394
Public: 613-763-XXXX
Private ID: 393
Содержание Modular ICS 7.1
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Страница 46: ...46 How to use this document Modular ICS 7 1 Installer Guide N0130943 02...
Страница 72: ...72 Welcome to ISDN Modular ICS 7 1 Installer Guide N0130943 02...
Страница 102: ...102 Remote system access Modular ICS 7 1 Installer Guide N0130943 02...
Страница 108: ...108 Controlling system access Modular ICS 7 1 Installer Guide N0130943 02...
Страница 192: ...192 ETSI MCDN and Network features Modular ICS 7 1 Installer Guide N0130943 02...
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Страница 582: ...582 Link Status Modular ICS 7 1 Installer Guide N0130943 02...
Страница 586: ...586 Usage Metrics Modular ICS 7 1 Installer Guide N0130943 02...