/mcpTrunk Device Reports CAR provides reporting capabilities for three levels of users: administrators, managers, and individual users. Only administrators generate device reports. Device reports track the load and performance of Unified Communications Manager related devices, such as conference bridges, voice-messaging servers, gateways, and trunks. Only CAR administrators generate the trunk reports. The following section describes how to configure Trunk Utilization reports. Generate Trunk Utilization Reports Only CAR administrators generate the Trunk Utilization report. This report calculates the utilization reports for devices based on the duration of calls that passed through the devices. You can generate this report on an hourly, daily, or monthly basis. The system calculates the utilization of a trunk for each hour in the selected date range. For example, the system calculates the utilization of a trunk between 11hrs-12hrs, using the formula, (Sum of the duration of calls that used the trunk in that hour / (total seconds in an hour * maximum number of ports in a trunk * number of days between the fromDate and toDate selected) * 100). Similarly, to get the utilization for each day in a week, the system calculates the utilization using the formula, ((sum of the duration of calls that used the trunk in a day) / (total seconds in each day * number of each day between the fromDate and toDate selected * maximum number of ports in a trunk) * 100). In the case of monthly utilization reports, the system calculates the utilization for each day in a month, using the formula, ((sum of the duration of calls that used the trunk in a day) / (total seconds in each day * number of each day between the fromDate and toDate selected * maximum number of ports in a trunk) * 100). Reports generate for each trunk that is chosen. For calculation of the trunk utilization, the system uses the port numbers from the CAR Trunk Configuration window. To find this window, choose System > System Parameters > Trunk Configuration. You cannot take port details for H.323 trunks from the Unified Communications Manager database because the H.323 port number always equals zero in the database. The user must update H.323 trunk ports information in the CAR Trunk Configuration window. Be aware that the only port detail information that is taken from the CAR Trunk Configuration window is only for those trunks that do not have port details that are available or that show zero in the Unified Communications Manager database. This section describes how to generate, view, or mail Trunk Utilization reports. Procedure Step 1 Choose Device Reports > Trunk > Utilization. The Trunk Utilization window displays. Step 2 In the Generate Reports field, choose a time as described in the following table. Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 157 CDR Analysis and Reporting Trunk Device Reports