What is Caller Line Identification (CLI)?
CLI is data that is automatically generated at the time a call is established and passed through carrier networks; and includes the called party’s number, the calling party’s number, the date and time of the call, the call’s duration and routing. CLI facilitates efficient call management, route selection and billing and is passed between carriers to support the operation of carriage services in accordance with the Telecommunications Act 1997 (the Act). CLI makes possible the provision of a range of products and services to customers, including Calling Number Display and Calling Name Display (both referred to as CND). The exchange of CLI between carriers however, can also raise risks to personal privacy because of the personal information that is being exchanged.
