Patent ID: 8125507
Filing Date: 2012-02-28
Classification: H04L,H04N

Abstract:
1. A mobile communication terminal, comprising: an input unit configured to receive multimedia data corresponding to an additional service other than an established video call; a controller configured to codec-process the received multimedia data and to perform a negotiation with a receiving terminal by transmitting a Master/Slave Determination message to the receiving terminal to determine a master/slave relationship with the receiving terminal, transmitting a Terminal Capacity Set message to the receiving terminal to determine a capability for processing transmitted video and audio data, transmitting a Multiplex Entry Send message to the receiving terminal to exchange a Multiplex Entry, transmitting an Open Logical Channel Audio message to the receiving terminal to open a Logical Channel for transmitting audio data, and transmitting an Open Logical Channel Video message to the receiving terminal to open a Logical Channel for transmitting video data; and a transceiver configured to transmit the multimedia data during the established video call.