System and method for transporting a call
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 10, 2007
Issued Date -
N/A
app pub date -
Oct 31, 2000
filing date -
May 13, 1997
priority date (Note) -
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Abstract
A system and method for transporting a call having call signaling and voiceband user communications through an asynchronous transfer mode system identifies when compression, encryption, or another processing option has been applied to the voiceband user communications. A first signaling processor processes the call signaling to identify a selected first connection and a processing option, such as a compression method, to be applied to the voiceband user communications. The first signaling processor transports a control message to a first interworking unit identifying the selected connection and the selected compression method. The first interworking unit compresses the voiceband user communications with the selected compression method, sets a convergence sublayer indicator bit as an indicator in an asynchronous transfer mode cell, fills the cell with the compressed voiceband user communications, and transports the cell over the selected connection. A second interworking unit receives the asynchronous transfer mode cell, and interworks the cell according to a decompression method for the voiceband user communications if the convergence sublayer indicator bit is set.
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