| 摘要 |
<p>The present invention relates to a Lawful Intercept, LI, system and a method (S100) in a LI system comprising at least one Intercept Access Point, IAP, for intercepting communication traffic using User Datagram Protocol, UDP, and Transmission Control Protocol, TCP, packets in one or more communications networks. The IAP delivers said communication traffic as Communication Content, CC,to a Law Enforcement Agency, LEA, via a mediation functionality controlled by an administration functionality. The method comprises: - receiving (S110) CC as UDP and TCP; - storing (S120) UDP and TCP CC in a buffer arrangement; - forwarding (S130) TCP CC or UDP CC via a first CC handover interface HI3 or via a second CC handover interface HI4 separated from the first CC handover interface HI3 to the LEA. It is further provided a synchronization mechanism in order to retransmit all IP packets lost over the new interface HI4 and a buffer capacity process.</p> |
