Lucent Technologies MERLIN LEGEND 6 System Manager's Manual page 91

MERLIN LEGEND Communications System Release 6.0
System Manager's Guide 555-660-118
3 System Components
Control Unit
— MCI Services (Release 4.2 and later systems only). Domestic outgoing
— Local DMS-100 Services (Release 4.2 and later systems only).
— AT&T Services. Domestic outgoing long-distance and voice calls;
T1 Service. This service is cost-effective and convenient for many
businesses. Prior to Release 4.0, it provided voice operation only. In
Release 4.0 and later systems, T1 service provides voice operation or
high-speed data operation. A T1 channel must be programmed for either
voice or data operation and cannot be used for both.
— Voice Operation. T1 voice channels can be configured to emulate
— Data Operation. Available in Release 4.0 and later systems, T1
long-distance and international voice calls; domestic incoming toll-free
800 voice calls; 900 service numbers; and private network voice calls as
well as 56- and 64-kbps restricted and unrestricted circuit-switched data
calls.
Available from local carriers: private network or tie trunk service for calls
between the MERLIN LEGEND Communications System and another
communications system (such as another MERLIN LEGEND
Communications System); outbound WATS for domestic outgoing long-
distance calls; inbound WATS for domestic toll-free incoming voice calls;
and, foreign exchange service.
56-and 64-kbps circuit-switched data calls with routing by dial plan; 900
service numbers; outbound WATS for domestic outgoing long-distance
calls; and domestic toll-free incoming voice calls.
NOTE:
In Release 6.0 and later systems (Hybrid/PBX mode only), tandem
PRI lines can be used for networking. In this case, you order a T1
facility and program it for PRI operation. For more information, see
the Network Reference .
different types of trunks for voice (analog) use, according to business
needs. T1 can emulate loop-start, ground-start, Direct Inward Dial (DID,
Hybrid/PBX mode only), and tie trunks. In some areas, T1 service is less
expensive than leasing the equivalent number of standard telephone
company trunks. T1 also allows access to network subscriber options
such as toll-free domestic long-distance services.
You can connect the system's control unit to another system's control
unit using an emulated T1 tie trunk programmed for T1-type voice
operation. This arrangement provides voice communications or analog
data communications using modems.
Switched 56 data operation allows switched data communications at 56
kilobits per second. The same high-speed connectivity can link a
MERLIN LEGEND Communications System to another; or it can link a
Issue 1
February 1998
Page 3-9