Methods and systems to direct the call codec negotiation and voice / data / internet / radio hybrid systems.

摘要

A method for controlling an originating network performing the following steps to establish a call between an originating station (690) located in the originating network and a terminating station (695) located in a visited network, Mobile communication networks over an IP network being connected: - determining the home network of the terminating station, - requesting a connection (710) through IP network base station termination network, - receiving a roaming number of the terminating station, - requesting termination of the connection between the originating network and the home network, - determining an IP address of a gateway (780) connected to the visited network, - requesting the establishment of a connection (700) between a gateway (770) connected to the originating network and the gateway (780) connected to the visited network for the call.