Lucent Technologies Inc.

Eric Anton Deichstetter

Joseph John Kott

David Reagan Rice

Hoo-Yin Khoe

Ronald Robert Brown

Jeffrey Louis Duffany

Gerald R Boyer

Dennis Loge

Phillip C Goelz

Arupjyoti Bhuyan

Brent E Taylor

Daniel John Goudzwaard

Matthew S Hrycko

When receiving a request from a telecommunications switch ( ) for a telephone call to a party, a loop carrier ( ) checks for errors and availability in the distribution resources that couple the called party to the digital loop carrier ( ). For a distribution resource error or unavailability, the digital loop carrier ( ) generates a distribution resource error message that is transmitted to the telecommunication switch ( ). The telecommunication switch ( ) applies terminating call features for the called party, such as voice mail or call forwarding, in response to the distribution resource error message.

Digital loop carrier system with enhanced call handling and method

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.

Voice frequency data enhancement method

The present invention provides a method for conveying information over a communication network such as a Digital Loop Carrier 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.

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Naperville, IL, United States of America

Eric Anton Deichstetter