Patent ID: 8320363

Claim:
An implementation method of IP multimedia subsystem (IMS) interception, comprising: receiving, by a content of communication trigger function (CCTF) having a processor, media information of the communication parties which is required to be intercepted and the media information is sent via a media anchor request message from an IMS net element, wherein the media anchor request message comprises a session-irrelative message, the session-irrelative message comprises a session-irrelative SIP message or a session-irrelative non-SIP message, the session-irrelative SIP message comprises an INFO message or a MESSAGE message, and the session-irrelative non-SIP message comprises a Diameter message; allocating, by the CCTF, media anchor points to the communication parties; sending, by the CCTF, the media anchor points allocated to the communication parties to the IMS net element via a media anchor result response message, the media anchor result response message comprises the session-irrelative message; and copying, by the CCTF, communication content to complete interception of the communication content when the communication parties communicate through the media anchor points.