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ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 2
7-87
Field 4 Retry permits multiple attempts to seize a busy trunk from the specified trunk
group.
This field is primarily applicable for those trunk groups routed over analog facilities
and uses trunk types 41, 42, 43, 46, or 47. Depending on the particular
configuration, retry may or may not be applicable for ISDN applications. Field
encodes and their descriptions are:
0
1
Multiple retry is not desired, that is retry not active
NOTE: The ISDN-PRI protocol contains an automatic retry capability.
Whenever trunk type 120 is selected, the zero (0) encode is required.
Recommended for ISDN applications where the 40-series of trunk types is used
This encode enables a double try single retry and thus provides slightly improved
call completion, particularly for large trunk groups that span across more than
one transmission facility.
Field 5
Field 6
Field 7
Not applicable for ISDN applications (encode must be 0 for not active).
Not applicable for ISDN applications (encode must be 0 for not active).
Not applicable for ISDN applications (encode must be 0 for no failure threshold).
NOTE: This field is only applicable for analog trunk facilities. It permits the
user to establish a trunk failure threshold that, when exceeded, will generate an
alarm. The threshold limit will affect service availability and, on an indirect
basis, the customer’s maintenance costs.