# Line Group Usage Report – All Trunks Busy Statistics

The Line Group Usage Report, also called the Line Groups–All Trunks Busy Report, shows how many times and for how many seconds every port in a line group is busy simultaneously. This condition is called All Trunks Busy, or ATB.

- Two counters are used for this resource: seconds and number.

The system checks each line group every second for an ATB condition and adds one second to the group’s seconds counter every time the condition occurs. The number counter is also incremented. Neither counter is incremented if at least one trunk within a group is not busy.

Note: You must specify the line group(s), the start and stop times, and the start and stop days for the report.

The report can be presented as the Line Group Usage Report or the Line Usage Report. An excerpt from a sample standard report is shown below. Reports may be requested for any or all parts of the most recent seven days’ activities. You can display data for a single line group or a range of line groups.

## To Run the Line Group Usage (ATB) Report

1. Enter A for Line Group Usage (ATB) from the Statistics Menu (enter S from the Reports Menu).

   The system displays the Line Group ATB Report Menu.

   LINE GROUP ATB REPORT MENU
   (A) Beginning Group (1 - 24) = [1] (B) Ending Group (1 - 24) = [24] (C) Beginning Hour (0 - 23) = [8] (D) Ending Hour (0 - 23) = [17] (E) Beginning Day (0 - 6) = [1] (F) Ending Day (0 - 6) = [5] (G) Summary = [N] (R) Run Report (X) Exit

2. Choose the group or range of groups to report:

   - Enter Aand the number of the first group in the range to report.

   - Enter Band the number of the last group in the range to report.

   - Enter the same group number for both A and B to report only one group.

3. Enter C to select the time interval for the data to display:

   - Enter the first hour of the time period to report (0 = midnight; 12 = noon.)

   - Enter Dand the last hour of the time period.

   - Notice that the default values are 8 (8 a.m.) to 17 (5 p.m.)

   The system retains statistical data for one week (7 days); 0 = Sun., 1 = Mon., 2 = Tue. ... 6 = Sat. The default is Mon - Fri.

4. Enter R to run the report.

   The system prompts you to choose a report destination.

5. Select the report destination.

The Line Group Usage Report displays All Trunks Busy data for each line group, in 15-minute increments, for each hour of the chosen interval.

The Line Usage Report shows a single value for each line group.

Note: Reports always run in the order of ascending date. If you designate a beginning hour that is greater than the ending hour, the report automatically switches them. However, if the beginning day number is greater than the ending day number, the report will wrap-around. For example, if the beginning day is 03 and the ending day is 01, the report order will be: 03, 04, 05, 06, 01.

Sample Line Group Usage (ATB) Report

## Reading the Line Group Usage (ATB) Report

In the sample report, the heading shows the date and time that the report was run.

The first line shows the date of the first statistic in the report and the time interval when the data was gathered.

PORT GROUP

The data displayed immediately below this entry refer to Line Group 1.

DAY = 01 HOUR = 15

The data displayed refers to the hour between 3 p.m. and 4 p.m. on Monday. Entry 00-14 indicates that the data in the column was gathered during the first 15-minutes of the hour; 15-29 refers to the second 15-minutes of the hour; 30-44 refers to the third 15-minutes of the hour; 45-59 refers to the final 15-minutes of the hour.

TOTAL

The data for the four 15-minute intervals. If a hyphen appears in place of a numerical value, it means that data have not been gathered.

EXAMPLE: If the report is run at 3:30 p.m., and the report interval is for hours 12 - 15 (noon to 3 p.m.), the entries for hour 15 (3 to 4 p.m.) show hyphens.

BUSY

The percentage of the hour when all trunks were busy.

EXAMPLE: Between 3 p.m. and 4 p.m., Group 1 had an ATB condition that occurred for 150 out of 3600 seconds; this would be 4% of the time.

ATB_SEC

The total number of seconds in the time period that an ATB condition occurred.

ATB_CNT

The number of times that an ATB condition occurred. The counter is incremented when an ATB condition first occurs. The ATB condition must clear and reoccur before the counter is incremented again.

EXAMPLE: If you had an ATB condition that lasted for 3 seconds, the ATB-SEC counter increases by 3, but the ATB_CNT counter is increased by 1.

HIGHEST ATB_SEC

The greatest total amount of time that ATB conditions occurred in a fifteen-minute interval for the period reported. (It does not mean the longest single interval during which an ATB occurred.) In other words, this period is the busiest during the interval reported.

LOWEST ATB_SEC

The least total amount of time that ATB conditions occurred in a fifteen-minute interval for the period reported. (It does not mean the shortest single interval during which an ATB occurred.) This period has the slowest traffic during the interval reported.

## Reading the Line Usage Report

The Line Usage Report (summary) displays the line groups by numbers and provides the total number of seconds, the total number of times, and the total percentage of time that an ATB condition occurred in that line group for the entire period reported.

This report is less specific than the Line Group Usage Report, but it allows you to see at a glance which line group received the most traffic for a specified time interval. In addition, by comparing the ATB count with the ATB seconds count, you can determine the average duration of the ATB condition during a specific period for each line group.