Communications Assistance for Law Enforcement Act  (CALEA) Assistance capability requirements for wireline, cellular, and PCS telecommunications carriers (a) Definitions. Call identifying information. Call identifying information means dialing or signaling information that identifies the origin, direction, destination, or termination of each communication generated or received by a subscriber by means of any equipment, facility, or service … Continue reading Assistance Capability Requirements for Wireline, Cellular, and PCS Telecommunications Carriers