Reporting on Failed Calls

Hello,

 

We are trying to alert on Failed Calls if they reach a certain threshold in the hour. We have tried a couple of trigger conditions, but the alerts seem to come in incorrectly based on what we are seeing in the VoIP Call search. Here is an example:

 

Alert went off at 8:14 pm on June 18th

But the VoIP Call search shows only 5 failed calls at that time –

Here is the trigger condition for this alert as well:

 

Any help on getting this alert to track correctly would be great! Thanks!