STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING SIGNALLING SYSTEM No. 7 - CLAUSE 5 - CONNECTED LINE IDENTIFICATION PRESENTATION (COLP) (Study Group XI)
The CLIP supplementary service is a supplementary service offered to the called user. It presents the calling user’s number, with additional address information (e.g. the calling party sub-address) if any, to the called user. When provided the facility applies to all incoming calls except for when the calling user has activated the calling line identification restriction (CLIR) supplementary service (see 4) or the complete number of the calling user is not available at the destination exchange.