Computer telecommunications signalling interface
First Claim
Patent Images
1. A telephone interface for connecting a computer to a telephone line for use in telephone systems employing information signalling during the silent interval between rings comprising:
- line interface means for interfacing the telephone interface with the telephone line,first computer interface means for interfacing the telephone interface with a computer, anddata demodulation means connected with the line interface means and with the first computer interface means for receiving data transmitted over the telephone line during a silent interval after a ringing signal,whereby in operation data present on the telephone line during the silent interval is retransmitted through the first computer interface means.
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Accused Products
Abstract
A telecommunications signalling interface for computer systems is presented. Control and information signals from the telephone switch are received, decoded, and converted to a standard interface format for retransmission to the computer. Control and information signals from the computer are received and converted to a standard format for transmission to the telephone switch. The power supply for the device may be derived from the telephone network and the computer interface.
221 Citations
45 Claims
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1. A telephone interface for connecting a computer to a telephone line for use in telephone systems employing information signalling during the silent interval between rings comprising:
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line interface means for interfacing the telephone interface with the telephone line, first computer interface means for interfacing the telephone interface with a computer, and data demodulation means connected with the line interface means and with the first computer interface means for receiving data transmitted over the telephone line during a silent interval after a ringing signal, whereby in operation data present on the telephone line during the silent interval is retransmitted through the first computer interface means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A telephone interface for connecting at least one telephone line to an external communications device for use in telephone systems employing information signalling during the silent interval between rings comprising:
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at least one line interface means for interfacing the telephone interface with the telephone line, external interface means for interfacing the telephone interface with an external communications device, and data demodulation means connected with the at least one line interface means and with the external interface means for receiving data transmitted over the telephone line during a silent interval after a ringing signal, whereby in operation data present on the telephone line during the silent interval is retransmitted through the external interface means. - View Dependent Claims (41, 42, 43, 44, 45)
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Specification