Patent ID: 7843902

Claim:
A method in a telecommunication system for monitoring a communication when requested by a Law Enforcement Monitoring Facility (LEMF), the method comprising the steps of: detecting by a Call Session Control Function (CSCF) in a service domain of the telecommunication system, a Session Initiation Protocol (SIP) session event due to a setup of a media-flow connection between a monitored party and a second party; sending Interception Related Information (IRI) from the CSCF toward the LEMF; sending a resource setup message from the CSCF to a Multimedia Resource Function (MRF), also in the service domain; receiving by the MRF, Communication Content (CC) from a media bearer node in a bearer domain of the telecommunication system, the CC being sent on the media-flow connection between the monitored party and the second party; copying the CC by the MRF; and routing a first copy of the CC from the MRF back to the media bearer node and routing a second copy of the CC from the MRF to the LEMF via a Delivery Function, wherein the Delivery Function is modified to establish a SIP session between the Delivery Function and the LEMF for delivery of the CC.