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US5425093A
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System for integrating a stand alone inbound automatic call distributor and a outbound automatic call dialer
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Call progress pacing
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Pacing of telephone calls for call origination management systems
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Classification of audio signals on a telephone line
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Telephone trunk interface circuit
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Redundancy and buffering circuits
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System for regulating arrivals of customers to servers
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US4875157A
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Alternate memory addressing for information storage and retrieval
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US4829514A
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Digital voice recording and reproduction and telephone network signalling using direct storage in RAM of PCM encoded data
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US4817130A
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Call management system with protocol converter and port controller
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US4741028A
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Method of randomizing telephone numbers
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