Problem Customer received an email from SIP provider advising of a possible fraud occurrence. [Source Number] has alarmed for a growing volume of calls to [+1264xxxxxxx], please verify that destination number is authorized for business. Troubleshooting Search for the source number to identify the user/object assigned to that number. Rely on the user activity report under Skype monitoring reports to retrieve more information on the number[s] called. We can see that there is a large volume of calls (275) to this number located in Anguilla which the business has no need to interact with.