Filter
Top Products
MERLIN LEGEND Communications System Release 6.1
Installation
555-661-140
Issue 1
August 1998
Prior Releases Features and Enhancements
Page xl
Release 4.2 Enhancements (June, 1997)
MLX-5 and MLX-5D Telephones
The MLX-5 nondisplay and MLX-5D display telephones are compatible with all
system releases. The display telephone includes a 2-line by 24-character
display, and both telephones come with 5 line buttons. In systems prior to
Release 5.0, the MLX-5 and MLX-5D telephones are treated as MLX-10 and
MLX-10D telephones respectively. As of Release 5.0, the system recognizes
the MLX-5 and MLX-5D telephones as 5-button telephones.
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 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: