Patent ID: 6249531
Filing Date: 2001-06-19
Classification: H04M,H04N

Abstract:
An apparatus for selectively compressing information comprising:monitoring means for detecting carrier tone signals transmitted along a common analog connection that supports a plurality of local communications devices including a local analog data communications device and a local analog telephone, said carrier to the signals being indicative of completion of a connection between said local analog data communications device and a target remotely located analog data communications device;compression means responsive to said monitoring means for compressing voice information contained in a call from said local analog telephone, said compression means having a plurality of modes of operation, including an active mode for compression of said voice information contained in said local analog telephone call and an inactive mode for maintaining user data contained in a transmission from said local analog data communications device in a constant compression state, said inactive mode being automatically triggered by detection of a carrier tone signal by said monitoring means; andtransmitting means, in communicative contact with said compression means, for transmitting said compressed voice information and said user data to target remotely located communications devices.