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MERLIN LEGEND Communications System Release 7.0
Pocket Reference
555-670-116
Issue 1
April 1999
15
Release 4.2 Enhancements (June 1997)
If these telephones are connected to communications system
releases prior to 5.0, they are recognized by the
communications system as 10-button telephones.
Release 4.2 Enhancements (June 1997)
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)
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 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.
— DMS tie trunk service to provide private exchange call
rating for calls placed on a dedicated central office facility
between the MERLIN LEGEND Communications System
and another communications system.