Table 3-54. Trunk Group Hourly report header field descriptions
Field Description
Grp No Group Number. A number that identifies the trunk group
associated with the displayed data.
Grp Size Group Size. The number of trunks in the trunk group.
Grp Type Group Type. All trunk group types except PCOL trunk
groups.
Grp Dir Group Direction. Incoming, outgoing, or two-way.
Que Size Queue Size. The size of the trunk group queue. If there is no
queue, the size is zero and the other queue measurements
are irrelevant.
Meas Hour Measurement Hour. The starting time (using 24-hour clock) of
the hour during which the data was recorded.
Total
Usage1
The total time (in CCS) trunks in the trunk group are
unavailable to carry a new call. It includes the time the trunks
are busy on calls, false starts, don’t answers, or any other
reason the trunk is unavailable. Not included are calls denied
service on the trunk group for authorization reasons or
because of queue overflow.
Maint
Usage
Maintenance Usage. The total usage (in CCS) of trunks in this
trunk group for Maintenance Busy or any other non-call
situation where trunks are not available to carry a call.
Total
Seize
Total Seizures. The total number of seizures on the trunk
group.
Inc. Seize Incoming Seizures. The number of incoming seizures on the
trunk group.
Tandem
Seize
Tandem Seizures. The number of trunk-to-trunk call seizures.
This count is incremented on the outgoing-trunk side of the
connection.
Grp Ovfl Group Overflow. The outgoing calls offered to the trunk not
carried. These are calls that arrive when all trunks in the group
are busy and are not queued on the trunk group. It does not
include calls denied service on the trunk group because of
authorization reasons.
Call Qued Calls Queued. The calls that enter the trunk group queue. This
can happen automatically for analog terminal users or at the
request of the caller for other terminal types.
Que Ovf Queue Overflow. The number of calls that arrive when all slots
in the Trunk Group Queue are occupied.
Que Abd Queue Abandoned. Calls removed from the queue either by
the system because they have been in the queue for the
maximum allowed time (currently fixed at thirty minutes), or
forced by users when they cancel the auto-call back, set earlier
to put the call in the queue.
Out Serv Out of Service. The number of trunks in the trunk group out of
service at the time the data is collected.
% ATB Percent All Trunks Busy. The percentage of time during the
measurement interval all trunks in the group are unavailable to
carry a new call (All Trunks Busy).
%Out Blk Percent Outgoing Blocking. The percent of the outgoing
seizures, including tandem seizures, offered to that trunk group
that are not carried on that trunk group. The value is calculated
as follows:
% Out Blk = {Grp Ovfl / [Total Seize - Inc Seize]} x 100
Wideband
Flag
If the trunk group supports wideband (n X DS0) switching,
“Wideband Support” appears in the report heading.
