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MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
Lines/Trunks
Page 3-44Selecting Line/Trunk Options
3
7. Select the disconnect time for each DID trunk by doing
one
of the following
under the Disconnect Time heading:
■ To keep the factory setting, check 500 ms.
■ To change the disconnect time, write the new value (10 to 2550 ms)
in the Other column.
Proceed to the next section, “NI-1 BRI Connectivity.”
NI-1 BRI Connectivity 3
To ensure proper operation of the BRI line features, the following options must be
set on the MERLIN LEGEND system during system programming:
■ Service Profile Identifier (SPID) for each BRI line B-channel
■ Directory Number (DN) for each BRI line B-channel
■ Clock Synchronization for the system
■ Timers for each BRI module (system provides defaults)
The following affect the operation of the MERLIN LEGEND system. However, they
are programmed on the Central Office (CO) switch:
■ Service Configuration of the BRI lines (IOC “S”, Multiline Hunt)
■ Hunting pattern for a Multiline Hunt configuration
Service Profile 3
A Service Profile (SP) defines the interface on a BRI line between a CO and an
ISDN terminal. It specifies the parameters and their values necessary to provide
services to the terminal. There are standardized capability packages called ISDN
Ordering Codes (IOCs) that are configured on the CO at subscription time. The
IOC contains information necessary for the CO to provide service to the system.
The MERLIN LEGEND system supports the IOC “S” capability package, which
provides alternate voice/circuit-switched data on two B-channels with no packet
data capability or supplementary voice features, except for the Calling Party
Number/Billing Number (CPN/BN) feature, if available.
In addition to the IOC “S” capability package, the MERLIN LEGEND system sup-
ports Multiline Hunt (MLH) service for
alternate
voice
and
data hunting if the CO is
a Lucent Technologies 5ESS or Northern Telecom DMS-100 switch. For a Sie-
mens SSC EWSD switch, MLH service must be provisioned as
either
voice
or
data hunting. MLH service is provided through the
Multiline Hunt Group (MLHG)
feature on Northern Telecom DMS-100 switches, and through the
Series Comple-
tion
feature on Lucent Technologies 5ESS and Siemens SSC EWSD switches.
NOTE:NOTE:NOTE:
The MLHG feature on the Lucent Technologies 5ESS and Siemens SSC
EWSD switches is
not
recommended for use with the MERLIN LEGEND
system.