Method, device and computer program for transmission of signal tones in heterogeneous networks

摘要

A media gateway controller (11) on the B-side selects a transmission method that is supported both by the media gateway (3) on the A-side and by the media gateway (4) on the B-side, and transmits its selection to the media gateway controller (10) on the A-side. Independent claims are also included for the following; (1) an apparatus for converting information streams between a packet network, (2) a line network; (3) for a computer program product for operating switching network.