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MERLIN LEGEND Communications System Release 6.1
Network Reference
555-661-150
Issue 1
August 1998
Introduction
Page 1-20Uniform Dial Plan
1
plan has two sets of extension ranges, both of which include routing information
that directs the call to the same private network trunk. This tandem PRI trunk
connects the New Jersey system to the Illinois system. In the non-local dial plan,
one extension range specifies the extensions on the system in Illinois, while the
other includes the extensions on the system in California.
When the call reaches the Illinois system, that system also checks the local dial
plan and then the non-local dial plan. It routes the call over a second tandem PRI
trunk to the California system. The system in California searches its local dial
plan, finds a match, and directs the call to Extension 3400.
Figure 1–8. Uniform Dial Plans
Each system has its own local system operator, and dialing
0 calls the operator on
the local switch. Users can reach an operator on another private network system
by dialing that operator’s extension number. Alternatively, Listed Directory
Number (LDN) calls from one system to another private network system can be
routed to the destination system’s Queued Call Console (QCC) operator.
Local
Dial Plan
1000
x1000 x2030 x3400
1037
Non-Local
PRI PRI
Dial Plan
2020
2071
3200
3459
LEGEND NJ
Local
Dial Plan
2020
2071
Non-Local
Dial Plan
1000
1037
3200
3459
LEGEND IL
Local
Dial Plan
3200
3459
Non-Local
Dial Plan
1000
1037
2020
2071
LEGEND CA