Abstract: Authentication of a request for access to user specific information associated with a VoIP device is performed transparently, without any user identification or password required. A unique device identifier associated with the VoIP device is included in the request for access and used as an authentication token.

Abstract: A VoIP analog telephone adapter coupled to a telephone allows a telephone call to be made over the Public Switched Telephone Network (PSTN) or over the Internet. Prior to dialing a phone number, with the telephone “off-hook”, a caller receives an audible indication as to whether the call will be made over the PSTN or the Internet through a standard dial tone generated by a Central Office or a distinctive dial tone generated by the adapter. The distinctive dial tone is different from the PSTN's dial tone.

Abstract: A parallel-connected dialing signal detection and transmission-inhibiting device is disclosed which detects dual-tone multi-frequency dialing signals across tip and ring conductors of a telephone link and switches in an a.c. load that attenuates the dialing signals by at least 30 dB. This prevents action in response to the DTMF signals by a central office servicing the telephone link, thereby allowing commands-data to be transmitted within the home telephone wiring. Such commands can be used to invoke a speed/auto dialing function, to provide an intercom, to control appliances, etc. To allow fast response, the controller charges a capacitor of the a.c. load by connecting it across the tip and ring conductors in response to an off-hook condition. Then it is disconnected to allow a dial tone to reach a user at the telephone. Further transparency is provided by the fact that a single interfacing capacitor connects both the dialing signal detector and a tone generator to the tip line.

Abstract: A parallel-connected dialing signal detection and transmission-inhibiting device is disclosed which detects dual-tone multi-frequency dialing signals across tip and ring conductors of a telephone link and switches in an a.c. load that attenuates the dialing signals by at least 30 dB. This prevents action in response to the DTMF signals by a central office servicing the telephone link, thereby allowing commands-data to be transmitted within the home telephone wiring. Such commands can be used to invoke a speed/auto dialing function, to provide an intercom, to control appliances, etc. To allow fast response, the controller charges a capacitor of the a.c. load by connecting it across the tip and ring conductors in response to an off-hook condition. Then it is disconnected to allow a dial tone to reach a user at the telephone. Further transparency is provided by the fact that a single interfacing capacitor connects both the dialing signal detector and a tone generator to the tip line.