Patent ID: 8140060

Claim:
A method for implementing a calling line identification service (CLI) inside a cellular telephony network comprising a SIP-based infrastructure (IMS) integrated with a core network to provide multimedia services to users via IP, where the network during the ringing time of a phone-call sends to a callee at least a line identity of a caller to be displayed on a screen of the phone before switching on a reply status, comprising: sending, by the caller at initial instant of the call setup, to a CLI-dedicated application of the IMS, a SIP request known as MESSAGE including SIP URIs of the caller and the callee; providing, by the CLI-dedicated application, in the MESSAGE at least one of the multimedia content of a pre-customized personal card matching both SIP URIs (business card) and address links to retrieve previously stored components of the multimedia content; forwarding the MESSAGE to the callee by the CLI-dedicated application; and receiving the MESSAGE on the phone of the callee and obtaining the multimedia content from the MESSAGE or retrieving the components using the address links for rendering and playing the business card.