Apparatus and method for converting control information

An apparatus for converting control information or of the media information for picture/speech communication between first and second terminals connected to respective different types of networks, comprising:

• at least one processor;
• and
• at least one memory device that stores a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to:
• receive, from the first terminal through a first type of network, first decoding information;
• a converter for effecting converting processing in a first direction for converting convert first decoding information acquired through the first type of network from said first terminal into first call control information;
• to output transmit, through a second different type of network, the resulting first call control information to said second terminal;
• and
• receive, from the second terminal through the second different type of network, second call control information;
• for effecting converting processing in a second direction for converting convert second call control information acquired through the second different type of network from said second terminal into second decoding information;
• to output transmit the resulting second decoding information to said first terminal through the first type of network, wherein
• at least Decoder Configuration Information DCI is received as the decoding information from said first terminal employing MPEG-4 as a system for encoding a moving picture for compression the first decoding information is Decoder Configuration Information (DCI) based on an MPEG-4 standard, and the DCI is converted into the first call control information.