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MERLIN LEGEND Communications System Release 5.0
System Manager’s Guide
555-650-118
Issue 1
June 1997
New Features and Enhancements
Page xiiiRelease 4.2 Enhancements
Release 4.2 Enhancements 0
Release 4.2 includes all Release 4.1 functionality, plus the enhancements listed
below. There are no hardware changes for Release 4.2.
Additional Network Switch and Services Options
for ISDN Primary Rate Interface (PRI) 0
Release 4.2 of the system supports connectivity to MCI® or local exchange
carrier (LEC) PRI services and to the following central office switch types (in
addition to the 4ESS™ and 5ESS® switch types that carry for AT&T® Switched
Network services):
■ NORTEL® DMS™-100 BCS 36 for local exchange carrier services
■ NORTEL DMS-250 generic MCI07 serving the MCI network
■ Digital Switch Corporation DEX600E generic 500-39.30 serving the MCI
network
Beginning with Release 4.2, the following MCI PRI and PRI local exchange carrier
(LEC) services (along with AT&T Switched Network Services) can be provided to
users of the MERLIN LEGEND Communications System:
■ MCI Toll Services for DMS-250 or DEX600E switch type:
— MCI Prism® service for domestic outgoing long-distance and
international voice calls; for domestic outgoing 56-kbps restricted,
64-kbps unrestricted, and 64-kbps restricted circuit-switched data calls
— MCI VNet® service for incoming and outgoing domestic and voice calls;
for 56-kbps restricted, 64-kbps restricted, and 64-kbps unrestricted
circuit-switched data calls
— MCI 800 for domestic, toll-free, incoming voice calls
— MCI 900 service numbers
■ LEC services for DMS-100 switch types:
— DMS Virtual Private Network service for calls between the MERLIN
LEGEND Communications System and another communications
system (such as another MERLIN LEGEND Communications System)
— DMS INWATS (Inward Wide Area Telephone Service) for domestic
toll-free incoming voice calls
— DMS OUTWATS (Outward Wide Area Telephone Service) for domestic
outgoing long-distance voice calls
— DMS FX (foreign exchange) to provide local call rating for calls from the
local exchange to the area serviced by the foreign exchange