A voice frequency data enhancement method

Details A voice frequency data enhancement method A voice frequency data enhancement method

H - Electricity

04

L

H04L 1/22 (2006.01) H04J 3/12 (2006.01) H04L 29/06 (2006.01) H04Q 3/00 (2006.01) H04Q 3/60 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2313736

The present invention provides a method for conveying information over a communication network such as a Digital Loop Carrier (DLC) network free of in- band signaling information for at least a portion of an established communication between at least two users so as to reduce the information error rate associated with the established communication. For communication links that support robbed-bit signaling (RBS), the RBS signaling is disabled to allow the communication link to be operated in a clear channel mode. When appropriate, operations can be switch from the clear channel mode back to the RBS mode. Embodiments are described for one-stage DLC systems having a local digital switch (LDS) connected to a remote terminal (RT) by a communication link conforming to either the TR-303 protocol or the TR-008 protocol. In addition, embodiments are described for two-stage DLC systems that also have a distance terminal (DT) connected to the RT by a second communication link.

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