Industry Guidance Note (IGN 009) CLI Management
Communications Alliance has published a CLI Management (IGN 009) Industry Guidance Note.
The objective of this Guidance Note is to give information on the nature and handling of Calling Line Identification (CLI). It is intended to help clarify the range of uses and abuses of CLI, and some of the practices in industry.
In particular it provides advice for Carriers and Carriage Service Providers (CSPs) on how to tackle the practice of inappropriate CLI spoofing. The overall objective is that end customers making calls across networks can be uniquely identified from the CLI presented.