| 摘要 |
The present invention relates to a network node arrangement comprising a server node adapted to handle control signaling for circuit switched calls and being connected to a gateway node adapted to handle user plane traffic under control of said server node, said server node further being adapted to control connections between mobile stations over a radio network. The server node is adapted to, for a first and second call leg of a requested call connection between a first mobile station and a second mobile station, provide information to the gateway node about radio network node handling the first call leg and the second call leg and circuit information about circuit resources for said first and second call legs. The gateway node comprises analyzing means adapted to detect if for the requested call the first and second mobile station are handled by a common radio network node and, if yes in generation means generate, and provide, interconnection information in a message to the server node including information about channel or circuit resources. The server node is adapted to forward interconnection information to the radio network node such that switching of user plane traffic can be controlled to take place in a common radio network node or in the gateway node. |
