CLI

1. Type of operating system interface; see our command line definition for additional information about this interface.
2. Short for Command Line Interface, CLI is an interface found on network devices such as routers. The interface allows the management and control of that network device. 
3. Short for Caller Line Identification, CLI is a service used to identify a telephone caller and the number they dialed. Similiar to ANI.

Also see: Command line, Network definitions