Importance

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Abstract

A system and a method connect mobile devices via channels which connect a first terminal and a second terminal. A bearer establishment of the connection is identified by the first terminal and/or the second terminal. The first terminal accesses information to identify the second terminal and/or to select a first codec for data to transmit the data in the first codec between the terminals. The first terminal alternatively chooses a first codec without accessing the information. The data in the first codec is transmitted from the first terminal to the second terminal without an exchange of codec capabilities and/or codec preferences. The second terminal is capable of receiving the data sent in the first codec. Alternatively, the second terminal may be incapable of receiving the data sent in the first codec. The first terminal uses capability and/or preference information received from the second terminal to detect cases whether the second terminal is incapable of receiving the data in the first codec. The first terminal identifies a second codec for the data which is acceptable by the second terminal for receiving the data. The first terminal changes from transmitting the data in the first codec to transmitting the data in the second codec. The second terminal receives and/or accepts the data sent in the second codec. The capability information and/or the preference information of the second terminal is stored in the first terminal and/or in a database accessible by the first terminal.

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First Claim