Patent ID: 7558295
Filing Date: 2009-07-07
Classification: H04J,H04M

Abstract:
1. A communication system configured to receive speech signals via a plurality of speech lines and communicate said speech signals over an analog phone line to a central office, said communication system comprising: a modem; a multiplexor in data communication with said modem; and a plurality of speech codecs in data communication with said multiplexor; wherein each of said plurality of speech codecs is configured to receive a portion of said speech signals via one of said plurality of speech lines and encode said portion of said speech signals to generate encoded speech signals, and wherein said multiplexor is configured to multiplex said encoded speech signals from each of said plurality of speech codecs to generate multiplexed encoded speech signals, wherein said modem is configured to transmit said multiplexed encoded speech signals over said analog phone line to said central office, and wherein at least one of said plurality of speech codecs is configured to dynamically reduce its coding rate for accommodating at least one additional speech line, over said analog phone line to said central office, using at least one additional speech codec.