Abbreviation for "Calling Line Identification Presentation" and means "caller ID".
CLIP enables the phone number of the caller (A participant) on the display of the called party's phone (B participant) to recognize. Frequently in PBXs or CTI Solutions compared the transmitted number directly with a telephone directory. If a suitable name is found for the number, it will be displayed to the person called.
The counterpart to CLIP is CLIR.