Apparatus for selectively connecting a telephone to a telephone network or the internet and methods of use
First Claim
1. Apparatus for selectively coupling an analog telephone circuit to either a telephone network or an Internet telephony service, the apparatus comprising:
- an interface adapted to be coupled to a PC;
a jack adapted to be coupled to the telephone network to pass analog signals to the telephone network;
a DTMF interface circuit adapted to be coupled to the analog telephone circuit; and
a switch coupled to the telephone, the switch having a first position wherein the telephone is coupled to the jack and a second position wherein the telephone is coupled to the interface, the switch moving between the first and second positions responsive to detection of a predetermined sequence of DTMF digits through the DTMF interface circuit.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are provided for selectively providing telephone service that is either PSTN-based on Internet-based using a standard analog telephone circuit. In a first embodiment, the apparatus comprises a hardware module and associated software for coupling a personal computer or Internet appliance and a standard analog telephone. The apparatus includes a DTMF interface circuit, a subscriber line interface circuit, a ring detection circuit, and an interface circuit for interfacing with the PC or Internet appliance. The apparatus permits the analog telephone to be toggled between an Internet-based telephone mode and a PSTN-network mode by inputting a predetermined sequence of DTMF digits. In alternative embodiments, the apparatus comprises a processor, modem and optionally, analog telephone circuit, to provide a stand-alone or partially-integrated device capable of selectively switching between PSTN-based and Internet-based telephony services.
37 Citations
57 Claims
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1. Apparatus for selectively coupling an analog telephone circuit to either a telephone network or an Internet telephony service, the apparatus comprising:
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an interface adapted to be coupled to a PC;
a jack adapted to be coupled to the telephone network to pass analog signals to the telephone network;
a DTMF interface circuit adapted to be coupled to the analog telephone circuit; and
a switch coupled to the telephone, the switch having a first position wherein the telephone is coupled to the jack and a second position wherein the telephone is coupled to the interface, the switch moving between the first and second positions responsive to detection of a predetermined sequence of DTMF digits through the DTMF interface circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32)
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18. A method of selectively coupling an analog telephone circuit to either a telephone network or an Internet telephony service, the method comprising:
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providing apparatus adapted to be coupled to a PC, an analog telephone circuit, and a telephone network, the apparatus including an interface, a DTMF interface circuit and a switch coupled to the telephone and the DTMF interface circuit, the switch having a first position wherein the telephone is coupled to the telephone network and a second position wherein the telephone is coupled to the interface, the switch responsive to detection of a predetermined sequence of DTMF digits by the DTMF interface circuit;
coupling the apparatus to a PC, an analog telephone circuit, and the telephone network; and
if it is desired to connect to the telephone network, dialing a telephone number while the switch is in the first position;
if it is desired to place an Internet-based telephone call, entering the predetermined sequence of DTMF digits to cause the switch to move to the second position.
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26. A telephone comprising:
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a jack adapted to be coupled to a telephone network;
an analog telephone circuit;
a microprocessor;
a modem coupled to the microprocessor; and
a switching circuit having a first position wherein the analog telephone circuit is coupled to the jack for transmitting and receiving analog voice signals over the telephone network, and a second position wherein the analog telephone circuit is coupled to the jack through the microprocessor and modem for transmitting digitized voice signals over the Internet.
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33. A method of selectively coupling an analog telephone circuit to either a telephone network or an Internet telephony service, the method comprising:
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providing apparatus adapted to be coupled to a telephone line, the apparatus including a jack, an analog telephone circuit, a microprocessor, a modem, and a switching circuit, the switching circuit having a first position wherein the analog telephone circuit is coupled to the jack for transmitting and receiving analog voice signals over the telephone network, and a second position wherein the analog telephone circuit is coupled to the jack through the microprocessor and modem for transmitting digitized voice signals over the Internet;
coupling the jack to the telephone line; and
if it is desired to connect to the telephone network, dialing a telephone number while the switching circuit is in the first position;
if it is desired to place an Internet-based telephone call, actuating the switching circuit to cause the switching circuit to move to the second position. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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42. A module for selectively using a telephone to place calls via the Internet or PSTN network, the module comprising:
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a first jack adapted to be coupled to an analog telephone;
a second jack adapted to be coupled to a telephone network;
a microprocessor;
a modem coupled to the microprocessor; and
a switching circuit having a first position wherein first jack is coupled to the second jack for transmitting and receiving analog voice signals from an analog telephone over the telephone network, and a second position wherein the first jack is coupled to the second jack through the microprocessor and modem for transmitting digitized voice signals over the Internet. - View Dependent Claims (43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 55, 56, 57)
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49. A method of selectively coupling an analog telephone to either a telephone network or an Internet telephony service, the method comprising:
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providing apparatus adapted to be coupled to an analog telephone via a first jack and a telephone line via a second jack, a microprocessor, a modem, and a switching circuit, the switching circuit having a first position wherein the first jack is coupled to the second jack for transmitting and receiving analog voice signals from an analog telephone over the telephone network, and a second position wherein the first jack is coupled to the second jack through the microprocessor and modem for transmitting digitized voice signals over the Internet;
coupling the first jack to a telephone;
coupling the second jack to a telephone line; and
if it is desired to place a telephone call using the telephone network, dialing a telephone number while the switching circuit is in the first position; and
if it is desired to place an Internet-based telephone call, actuating the switching circuit to cause the switching circuit to move to the second position.
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Specification