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Voice Call Fan Out

The Voice Call Fan Out sensor looks for patterns in voice call fan outs. In a fan out, a single IP phone calls a large number of unique phone numbers in a short time.

Troubleshooting a Voice Call Fan Out Alert

The IP Address of the phone that originates the call fan-out is identified in the anomaly event. Check the phone at this address to determine why it originates fan-out calls. Use the UCM dashboard to determine which calls were made in the fan-out time frame.