Telephony adapter system for providing a user with a virtual presence to an office
First Claim
1. A method for providing a user operating a first modem and a first telephony adapter with a virtual presence at a remote data site including a second modem and a second telephony adapter, wherein said first and second modems are coupled to a telephone network, wherein said first telephony adapter is coupled between a telephone instrument and said first modem, wherein said second telephony adapter is coupled between the telephone network and said second modem, the method comprising:
- establishing a data connection between said first and second modems;
said second telephony adapter detecting a ringing signal from the telephone network after said establishing said data connection;
said second telephony adapter communicating said detecting said ringing signal to said first telephony adapter;
said first telephony adapter ringing said telephone instrument in response to said second telephony adapter communicating said detecting said ringing signal;
said first telephony adapter detecting the user answering said telephone instrument;
said first telephony adapter communicating said detecting said answering to said second telephony adapter; and
said second telephony adapter generating an off hook condition to said telephone network in response to said first telephony adapter communicating said detecting said answering.
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Accused Products
Abstract
A telecommunications system which employs commodity simultaneous voice and data (SVD) modems to provide a user with a virtual presence to an office. A first telephony adapter is coupled between a user'"'"'s home modem and a telephone. A second telephony adapter is coupled between a server modem and the PSTN. The modem data ports are coupled to the PSTN. The first adapter emulates a Central Office (CO) by ringing the telephone, detecting on and off hook conditions from the telephone and supplying line power to the telephone. The first adapter emulates a telephone to the modem voice port by detecting ringing voltages and generating on and off hook conditions. The second adapter emulates a telephone to the PSTN and emulates a telephone to the server modem voice port. The modems establish a connection which enables the user to access a LAN in the office. The home telephone number is forwarded to the server modem and when a call is placed to the user, the call is forwarded by the PSTN to the server adapter. The server adapter notifies the home adapter of the incoming call and the home adapter rings the telephone. When the telephone is answered the home adapter sends DTMF tones to the server adapter to indicate the answered call. The server adapter goes off hook to indicate to the PSTN that the call has been answered. The home adapter couples the telephone to the home modem voice port and the server adapter couples the PSTN to the server modem voice port and the parties converse via voice channel activated by the modems. When the user hangs up, the home adapter sends DTMF tones to notify the server adapter to hang up on the PSTN.
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Citations
41 Claims
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1. A method for providing a user operating a first modem and a first telephony adapter with a virtual presence at a remote data site including a second modem and a second telephony adapter, wherein said first and second modems are coupled to a telephone network, wherein said first telephony adapter is coupled between a telephone instrument and said first modem, wherein said second telephony adapter is coupled between the telephone network and said second modem, the method comprising:
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establishing a data connection between said first and second modems; said second telephony adapter detecting a ringing signal from the telephone network after said establishing said data connection; said second telephony adapter communicating said detecting said ringing signal to said first telephony adapter; said first telephony adapter ringing said telephone instrument in response to said second telephony adapter communicating said detecting said ringing signal; said first telephony adapter detecting the user answering said telephone instrument; said first telephony adapter communicating said detecting said answering to said second telephony adapter; and said second telephony adapter generating an off hook condition to said telephone network in response to said first telephony adapter communicating said detecting said answering. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for providing a user operating a first modem and a first telephony adapter with a virtual presence at a remote data site including a second modem and a second telephony adapter, wherein said first and second modems are coupled to a telephone network, wherein said first telephony adapter is coupled between a telephone instrument and said first modem, wherein said second telephony adapter is coupled between the telephone network and said second modem, the method comprising:
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establishing a data connection between said first and second modems; said first telephony adapter detecting an off hook condition from the telephone instrument after said establishing said data connection; said first telephony adapter communicating said detecting said off hook condition to said second telephony adapter; said second telephony adapter generating an off hook condition to the telephone network in response to said first telephony adapter communicating said detecting said off hook condition; said first telephony adapter coupling said first modem to said telephone instrument after said first telephony adapter communicating said detecting said off hook condition; and said second telephony adapter coupling said second modem to the telephone network in response to said first telephony adapter communicating said detecting said off hook condition. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A telephony adapter system for providing a user with a virtual presence at an remote data site, comprising:
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a first telephony adapter located at the user premises configured for coupling between a telephone instrument and a first modem, wherein the first modem is configured for coupling to a telephone network; and a second telephony adapter located at the remote data site configured for coupling between the telephone network and a second modem, wherein the second modem is configured for coupling to the telephone network; wherein said second telephony adapter comprises; a ring detector for detecting a ringing signal generated by the telephone network; means for communicating detection of said ringing signal to said first telephony adapter; and a switch for generating an off hook condition to the telephone network in response to said first telephony adapter communicating detection of an off hook condition generated by the telephone instrument and for generating an on hook condition to the telephone network in response to said first telephony adapter communicating detection of an on hook condition generated by the telephone instrument; wherein said first telephony adapter comprises; a ring generator for ringing said telephone instrument in response to said second telephony adapter communicating detection of said ringing signal generated by the telephone network; a loop current detector for detecting on and off hook conditions generated by the telephone instrument; and means for communicating said on and off hook conditions generated by the telephone instrument to said second telephony adapter. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A telephony adapter located at a data site remote from a user for providing the user with a virtual presence at the remote data site, comprising:
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a first interface for coupling to a telephone network, comprising; a ring detector for detecting a ringing signal generated by the telephone network; and a first switch for generating on and off hook conditions to the telephone network; a second interface for coupling to a first modem located at the remote data site, comprising; means for detecting a signal from a second modem located proximate to the user indicating generation of an off hook condition generated by a telephone instrument operably coupled to the second modem; and means for generating a signal to the second modem indicating the detection of said ringing signal generated by the telephone network; and a second switch for selectively coupling said first and second interfaces for passing audio signals between the telephone network and the first modem. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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Specification