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AU8383798A
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Extended range dds transport via loaded or unloaded facilities
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WO9810526A1
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Method and apparatus for automatic hybrid balancing using a multitone signal
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High density telephone network interface unit
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Method of rapid automatic hybrid balancing
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AGC amplifier for two-wire line conditioner
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Method and apparatus for controlling line conditioner equalizer
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Adjustable hybrid having improved biasing configuration
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Ground fault detector for T1 span equipment
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Enhancement for a multiplexing telecommunications interface
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Performance monitoring system for T1 telephone lines
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Data transmission protection circuit with error correction
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Remote terminal channel unit for telephone transmission lines
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Floating digital loop carrier telephone interface
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Noise-tolerant address transmission system for digital telecommunication network
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Dual span monitoring system for maintenance shelf control
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Bridge for a network interface unit
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High density telephone network interface unit
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Gain or loss compensation circuit for telephone lines
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Trans-hybrid loss compensator for on hook transmission
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Caller identification transmit path limiter
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