Method, Network Node and Application Service for Making Available Call Detail Records in an IP Multimedia Subsystem Type Network

摘要

The present invention relates to a method of operating a network node (e.g. an MGCF) in a telecommunications network system during a call, wherein the call has been established through a packet switched and a circuit switched part of the network. The method comprises a step of the network node receiving an indication of the call being terminated. The network node also receives call detail data from a switching network node in the circuit switched part of the network, and includes the received call detail data in a call termination message for making the call detail data available in the packet switched part of the network. Then, the network node transmits the termination message to a call controlling SIP-AS in the packet switched part of the network. The present invention further relates to methods of operating a call controlling SIP-AS and an extended services SIP-AS.