Lucent Technologies MERLIN LEGEND Release 6.0 Network Reference Manual page 118

MERLIN LEGEND Communications System Release 6.0
Network Reference 555-660-150
2 Call-Handling Scenarios
Network Configuration Scenarios
Routing for Outside Calls
This topic examines routing for hypothetical outside calls, to show how the system
managers in Scenario 3 maximize cost benefits from the private network. As you
study the example call routes in
as described earlier in this section.
Note the following facts about routing for outside calls in this scenario:
Some DID calls that come into System K are actually destined for System L
or System J. In a network such as this one where one system has blocks of
DID numbers, digit manipulation can be used to route DID calls from one
system to another. In this example, System K has purchased a block of
DID numbers from a service provider.
At Systems K, L, and M, users make and receive 2B data calls. If an
outside 2B data call travels over PRI or BRI facilities and/or tandem PRI
facilities only, it can take place up to 128 kbps. However, if it is routed over
a PSTN T1 Switched 56 facility (such as the one connected to System M),
the 2B data call can travel at a rate no higher than 112 kbps.
A PRI dial-plan routed call can be sent across the network to a telephone
extension. If ANI information is available and the call traverses PRI
facilities only, it can be displayed at the recipient's extension. DID calls do
not provide calling party, but they do provide calling party name or number
information.
Table 2–17, page 2–59, review the general setup
Issue 1
February 1998
Page 2-58
2