Simultaneous voice and data call establishment using a simultaneous voice and data modem pool and private branch exchange facilities
First Claim
1. A modem comprising:
- a first port of the modem for coupling to a switching system;
a second port of the modem for coupling to the switching system; and
means for originating signaling to the switching system through each of the ports of the modem to establish telephone calls between each port and a respective called party wherein the means for originating bridges the respective called parties together;
wherein the means for originating receives a simultaneous voice and data signal from the second port, and further demodulates the received simultaneous voice and data signal to provide a voice signal to the first port.
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0 Petitions
Accused Products
Abstract
A simultaneous voice and data (SVD) modem includes two analog ports and a data terminal port. Both of these analog ports are capable of transmitting telephone numbers and are coupled to a switching system like a private branch exchange (PBX). The data terminal port is coupled to a data terminal of an SVD user. In one embodiment of the invention, the SVD user, the calling party, sends at least one command to the SVD modem, via the data terminal port. In response, the SVD modem separately transmits, to the PBX, the calling party number from one of the analog ports and the called party number from the remaining analog port. The SVD modem then subsequently communicates any voice signals received on one of the analog ports to the other analog port. This allows a voice call to be switched through the SVD modem, yet requires no modification to the PBX.
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Citations
18 Claims
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1. A modem comprising:
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a first port of the modem for coupling to a switching system; a second port of the modem for coupling to the switching system; and means for originating signaling to the switching system through each of the ports of the modem to establish telephone calls between each port and a respective called party wherein the means for originating bridges the respective called parties together; wherein the means for originating receives a simultaneous voice and data signal from the second port, and further demodulates the received simultaneous voice and data signal to provide a voice signal to the first port. - View Dependent Claims (2, 3)
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4. A method for establishing a voice call for use in a modem, the method comprising the steps of:
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receiving at least one command via a data terminal equipment port of the modem; responsive to the received command, transmitting a first telephone number via a first analog port of the modem and a second telephone number via a second analog port of the modem, where both analog ports are coupled to a switching system; and subsequently communicating a voice signal appearing at one of the analog ports to the other of the analog ports of the modem. - View Dependent Claims (5, 6, 7)
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8. A method for establishing a voice call for use in a modem, the method comprising the steps of:
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receiving a first command via a data terminal equipment port of the modem; responsive to the first command, answering a first telephone call appearing at a first analog port of the modem, where the first analog port is coupled to a switching system; receiving a second command via the data terminal equipment port of the modem; responsive to the second command, transmitting a telephone number via a second analog port coupled to the switching system; and subsequently establishing a voice connection between the first analog port and the second analog port of the modem. - View Dependent Claims (9, 10, 11)
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12. A method for establishing a voice call though a modem, the method comprising the steps of:
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establishing a first voice call between a first party and a second party through a switching system; transferring the first voice call from a voice terminal of the first party to a first analog port of the modem; and causing the modem to initiate a second telephone call to the first party by the modem dialing a telephone number from a second analog port of the modem; wherein both analog ports are coupled to the switching system, and upon the called party answering the second telephone call a second voice call exists between the called party and the second party through the first and second analog ports of the modem. - View Dependent Claims (13)
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14. A method for use in a modem for establishing a voice call through a modem, the method comprising the steps of:
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establishing through a first analog port of the modem a communications channel between the modem and a remote modem; detecting from the communications channel a first off-hook signal from the remote modem; providing a second off-hook signal at a second analog port of the modem, where the second analog port is coupled to a switching system; and subsequently providing a telephone number from the second analog port to the switching system. - View Dependent Claims (15, 16, 17, 18)
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Specification