Patent ID: 7953123
Filing Date: 2011-05-31
Classification: H04L

Abstract:
1. A method for controlling the establishment of exchange channels so as to allow transmission of multimedia information between at least two communications terminals connected with each other through a telecommunications network, comprising: establishing a communication between a first communications terminal and a second communications terminal by using respective applications which manage a determined signaling protocol allowing initiation of sessions, the first terminal selecting at least one data exchange channel between both terminals, identifying, by the first terminal, the at least one data exchange channel which may be used for transmitting additional information, the identification resulting from seeking the exchange channels, wherein the first terminal analyzes at least one response from the second terminal to a request wherein one of a purely descriptive fields was filled with additional information in addition to said signaling protocol, wherein selecting at least one data exchange channel between both terminals is performed at an application level, and establishing the first communication between the first communications terminal and the second communications terminal comprises: