Service Profile - AT&T MERLIN LEGEND Release 3.1 System Planning Manual

Selecting Line/Trunk Options

Service Profile

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
supports Multi-Line Hunt (MLH) service for alternate voice and data hunting if
the CO is an AT&T 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 Multi-Line Hunt Group (MLHG)
feature on Northern Telecom DMS-100 switches, and through the Series
Completion feature on the AT&T 5ESS and Siemens SSC EWSD switches.
NOTE:
The MLHG feature on the AT&T 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 CO switches supports linear
hunting on an AT&T 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
CO 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 phone 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 CO 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 CO treatment (such as busy tone).
Optional features:
Calling Party Number/Billing Number (CPN/BN) can also be ordered
at subscription time.
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Lines/Trunks