Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 169

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
called ISDN Ordering Codes (IOCs) that are configured on the central office at
subscription time. The IOC contains information necessary for the central office 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
supports Multiline Hunt (MLH) service for alternate voice and data hunting if the
central office is a Lucent Technologies 5ESS or Northern Telecom DMS-100
switch. For a Siemens 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 Completion feature on Lucent Technologies 5ESS and Siemens SSC
EWSD switches.
NOTE:
The MLHG feature on the Lucent Technologies 5ESS and Siemens SSC
EWSD switches is not recommended for use with the MERLIN LEGEND
System.
MLH service may be configured in either a linear or circular pattern. Current
testing of the MERLIN LEGEND System with the central office switches supports
linear hunting on a Lucent Technologies 5ESS switch, and circular hunting on the
Northern Telecom DMS-100 and Siemens SSC EWSD switches. Other
configurations are possible, but they are not guaranteed to work with the MERLIN
LEGEND System.
The Service Profile consists of the following:
A Service Profile Identifier (SPID), which is a unique identifier used by the
central office to associate an ISDN terminal with a Service Profile.
A Directory Number (DN) for each BRI line B-channel. This DN is usually
the local telephone number that was assigned by the service provider.
If MLH service is not subscribed, only one call to a particular DN will be
accepted at any given time, and any station with the line appearance of the
BRI line will alert. If MLH is subscribed, the central office will automatically
hunt for the next available B-channel within the hunt group and deliver
multiple calls to the same DN. If all B-channels are in use, subsequent calls
to the same DN will receive standard central office treatment (such as busy
tone).
Optional features:
— Calling Party Number/Billing Number (CPN/BN) can also be ordered
at subscription time.
Issue 1
April 1999
3-47