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System and method for providing lifeline telecommunication service |
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System and method for providing lifeline telecommunication service to line-powered customer premises equipment |
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2007-07-17 |
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System and method for providing lifeline telecommunication service |
Robert Whitcher |
2006-12-12 |
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Integrated digital loop carrier system with virtual tributary mapper circuit |
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System and method for reliably communicating telecommunication information |
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Backplane architecture for a telecommunications system chassis |
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System and method for communicating telecommunication information between a telecommunication switch and customer premises equipment |
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2002-10-15 |
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System and method for communicating telecommunication information between network equipment and a plurality of local loop circuits |
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2002-06-11 |
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Integrated digital loop carrier system with virtual tributary mapper circuit |
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Integrated digital loop carrier system with virtual tributary mapper circuit |
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Integrated digital loop carrier system with virtual tributary mapper circuit |
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