User's Manual  888  Document #: LTRT-10532 
 
  Mediant 500L Gateway & E-SBC 
  To reset the counters: 
  Click Reset Counters. 
 
55.3  Viewing Average Call Duration 
You can view the number of currently active calls and the average call duration (ACD) in 
the Web interface's Average Call Duration page. You can filter display by a specific SRD or 
IP Group. The page displays the following two graphs: 
  Upper graph: Displays the number of currently active calls (INVITEs). The x-axis 
indicates the time (hh:mm:ss) and the y-axis the number of calls. 
  Lower graph: Displays the ACD. The x-axis indicates the time (hh:mm:ss) and the y-
axis the average call duration. The ACD is refreshed every 15 minutes and therefore, 
this value reflects the average duration of all established calls made within a 15 
minute period. 
 
 
Note:  The Average Call Duration page is applicable only to SBC calls. 
 
  To view number of active calls and average call duration: 
1.  Open the Average Call Duration page (Monitor menu > Monitor tab > Performance 
Monitoring folder > Average Call Duration). 
Figure  55-3: Viewing Average Call Duration 
 
2.  From the 'SRD / IP Group' drop-down list, select the configuration entity (SRD or IP 
Group). 
3.  From the 'Index' drop-down list, select the specific SRD or IP Group index.