In United States v. Lamons, 532 F.3d 1251, 1255 (11th Cir. 2008), the defendant, a flight attendant, was convicted of making a threatening telephone call to his employer, Air Tran Airways. The government obtained billing records from Sprint, which showed that the defendant called Air Tran at the time the threat was made. Id. at 1262-63. Referring to testimony from the contractor for Sprint explaining the process involved in providing billing data, the court held that the data did not constitute hearsay because the statements were those of machines, not humans. Id.