Instruction manual

Central Office Provisioning
NOTE:
Depending on the local central office, LASS features may be available under a
different names. Contact the local operating company to obtain complete
information on feature names in each central office.
Some LASS global parameter settings at the central office may affect the Automatic
Callback and/or the Automatic Recall feature operation. The MAX RNGBK and
RNGBK WAIT options on Form 8.21 indicate the maximum number of ringback
attempts and the time interval (in minutes and seconds) between ringbacks after an
unanswered attempt. MAX RNGBK can be set in the range of 1 to 12 attempts and
RNGBK WAIT can be set in the range of 3 to 12 minutes (in increments of 15 seconds).
These parameters can be used to have the Automatic Callback or Automatic Recall
feature attempt to deliver the callback multiple times at specified time intervals.
Unless these parameters are programmed, the default setting will cause Automatic
Callback or Automatic Recall ringbacks to be attempted only once. If the ringback is
not answered after that one attempt (for example, if the user is on another call), the
Automatic Callback or Automatic Recall feature is canceled for that call.
The maximum setting (12) for MAX RNGBK is recommended for the MERLIN LEGEND
BRI system, However, these parameters are generally global settings at the central
office and the local telephone company may not be willing to change them for
MERLIN LEGEND BRI system customers.
NOTE:
Settings may vary in different central offices. Contact the local telephone
company for information about ranges and recommended settings.
Multi-Level Precedence and Preemption (MLPP)
Numerous options can be set for MLPP. but these options are not addressed in this
document. In general, options are provisioned for MLPP for a MERLIN LEGEND BRI
system in the same manner as those assigned for directly connected terminals. Refer
to the MERLIN LEGEND Basic Rate Interface Supplemental Reference (555-60 1-111 ) for
details on the MLPP feature.
Multi-Line Hunt Group (MLHG)
The following information must be provided to the central office at subscription time
when some or all of the BRI lines are included in a Multi-Line Hunt
Group (MLHG):
■ Number of lines included in the MLHG
■ Hunt type-linear or circular
The central office provides a main (starting) number and the line hunting order.
The CKT LCC, SAR QTY, and SAR ORIG attributes must be set differently from the
standard BRI configurations settings as shown in Table 2.
10 Basic Rate Interface (BRI) Provisioning Guide