Patent ID: 9521267
Filing Date: 2016-12-13
CPC Classification: H04L,H04M

Claim Text:
1. A method of operating a network node in a telecommunications network system during a call, wherein said call has been established through a packet switched part and a circuit switched part of said telecommunications network system, and wherein said network node comprises a media gateway control function, the method comprising: said network node receiving an indication of said call being terminated; said network node transmitting a call termination message to a call controlling session initiation protocol application server in said packet switched part, wherein the call termination message includes an indication that said call is being terminated; said network node, prior to said transmitting of said call termination message, receiving call detail record (CDR) data in said circuit switched part, said CDR data comprising all charging information for the circuit switched part of said call, wherein the charging information includes a cost of making said call; and said network node, prior to said transmitting of said call termination message, including said received CDR data in said call termination message, for making said CDR data available in said packet switched part for enabling call charging in said packet switched part.