APPARATUS AND METHOD FOR COMMUNICATING VOICE AND DATA BETWEEN A CUSTOMER PREMISES AND A CENTRAL OFFICE

摘要

A method and apparatus are provided for communicating data (25) across a communication link (26), in a manner that senses and dynamically adapts to the simultaneous transmission of voice information (30, 32) across the local loop. In accordance with one aspect of the invention, a method is provided for dynamically communicating data (25) over a local loop using a modem (20) comprising the steps of transmitting data in a full-band transmission state, sensing a band-limiting condition, and adjusting the transmission of data from the full-band transmission state to a band-limited transmission state, in response to the sensing step. A significant aspect of the present invention is the dynamic allocation of the data transmission bandwidth, whereby the invention senses a condition indicative of whether voice information (30, 32) is being communicated. If so, then the system shifts and/or narrows the data transmission bandwidth to allow for voice communications without interference from or with the data transmission.