Computer telephony using a circuit-switched network
First Claim
1. An apparatus, comprising:
- a plurality of substantially continuous compressed-voice data signals;
a multiplexer combining the substantially continuous compressed-voice data signals into a compressed-voice data package; and
a signal injector injecting said compressed-voice data package into a prearranged time slot of a circuit-switched signal path of a distributed circuit-switched telephone network.
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Accused Products
Abstract
Apparatus for placing a plurality of computer-assisted compressed-voice subscriber calls using a circuit-switched signal path in a distributed telecommunications network. A plurality of vocoders receive voice data from respective subscriber voice devices and output substantially continuous compressed-voice data signals which are arranged by a plurality of packetizers into compressed-voice data packets. A plurality of network adapters send the compressed-voice data packets to a circuit-switched telephone network. A plurality of sequencers remove the substantially continuous compressed-voice data signals from the compressed-voice data packets. A multiplexer coupled to the sequencers combines the compressed-voice data signals into a compressed-voice data package and a signal injector injects the compressed-voice data package into a prearranged time slot of a conventional circuit-switched signal path. Upon arrival at the destination, the time slot carrying the compressed-voice data is disassembled and compressed-voice data is routed to destination subscriber premises. Circuit-switched telephone networks can now be employed to carry compressed voice, allowing simultaneous voice and data communications, while still providing low cost and high quality voice service.
13 Citations
20 Claims
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1. An apparatus, comprising:
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a plurality of substantially continuous compressed-voice data signals;
a multiplexer combining the substantially continuous compressed-voice data signals into a compressed-voice data package; and
a signal injector injecting said compressed-voice data package into a prearranged time slot of a circuit-switched signal path of a distributed circuit-switched telephone network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method, comprising the steps of:
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receiving a plurality of substantially continuous compressed-voice data signals;
combining said plurality of substantially continuous compressed-voice data signals to form a compressed-voice data package; and
injecting said compressed-voice data package into a prearranged time slot of a circuit-switched signal path of a distributed circuit-switched telephone network - View Dependent Claims (15, 16, 17, 18)
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19. An apparatus, comprising:
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a multiplexer combining a plurality of substantially continuous compressed-voice data signals into a compressed-voice data package and injecting said compressed-voice data package into a prearranged time slot of a circuit-switched signal path of a distributed circuit-switched telephone network;
a signal extractor extracting the compressed-voice data package from the prearranged time slot of the circuit-switched signal path; and
a demultiplexer separating said compressed-voice data package into a plurality of compressed-voice data signals. - View Dependent Claims (20)
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Specification