Abstract:
Methods and systems are disclosed for blocking unwanted telephone calls utilizing a ring blocking device that works in conjunction with an external remote call blocking service. The call blocking service blocks unwanted calls by examining the caller ID information that is normally transmitted to a wireline telephone device during the silent interval between the first and second power ringing bursts of the call. The call blocking service compares the caller ID information to a blacklist of unwanted calling parties and ends the call if the incoming call's caller ID information matches an entry on the blacklist. The ring blocking device, which is typically located on the user premises, is configured to prevent the first power ringing burst from activating the telephone ringer, while also ensuring that the telephone reliably receives and displays the caller ID.
Abstract:
A method and apparatus for screening an incoming telephone call from a caller on an external telephone line connected to an answering device for recording the call includes inserting into the telephone line a circuit comprising a voltage sensitive device and a bridging device for allowing a handset of a telephone set connected to the telephone line and remote from the answering device to be picked up to listen to the call. The handset of the telephone set is picked up to enable a speaker component of the telephone set without interrupting operation of the answering device. The incoming call is listened to via the enabled speaker component while the answering device operates. A microphone component of the telephone set is optionally enabled to speak with the caller. The operation of the answering device may be interrupted by pressing a switch.
Abstract:
A communications detector for detecting remote user hang-up or disconnection by a telephone answering machine (TAM). The remote hang-up detector (RHUD) may operate in conjunction with a modem and does not affect transmission and receipt of modem signals and modem performance. An optically isolated voltage detector indicates to the TAM that the remote user has hung up by detecting reversal or interruption of the loop current supplied by the central office, thereby causing the local user or modem to likewise hang up.
Abstract:
A ring voice message generating device for use in an automatic answering telephone system including a key input unit having alphanumeric keys or other function keys, for allowing a user to set the telephone system in a voice calling mode so that, upon reception of an incoming telephone call, a personalized voice message pre-recorded is announced in lieu of a standard ring tone to inform the user of such an incoming telephone call. Otherwise, the telephone system generates a standard ring tone if the voice calling mode is not set by the user. A ring detecting unit is connected to an incoming telephone line from a central exchange for detecting an incoming telephone call. An on/off hook switch is connected to the telephone system for forming a telephone conversation path when the user picks up the telephone handset to answer the incoming telephone call. A voice storing unit is provided for storing a personalized voice message for announcing the incoming telephone call when the telephone system is set in the voice calling mode. A ring generating unit is provided for generating a standard ring tone when the telephone system is not set in the voice calling mode. A mode selecting unit is provided for allowing the user to set the telephone system in one of a voice calling mode and a standard ring mode.
Abstract:
An automatic telephone recorder includes a computer equipped with a sound signal handling feature and a digital recording medium such as a disk drive. The sound signal handling feature includes an audio input, an audio output and programmable means for selectively effecting digital recording on the recording medium of an audio signal applied to the sound signal handling means input. A line transformer is connected between a telephone line pair and the sound signal handling means audio input. The sound signal handling means is programmed to periodically test the sound signal handling means audio input to determine if audio or a predetermined transient signal, indicating that the telephone line has gone from an on-hook condition to an off-hook condition, is present. If the audio or transient signal is present, the sound signal handling means is programmed to institute recording of any audio signal present at the sound signal handling means audio input for as long as such audio remains. In one embodiment, a pulse stretcher circuit responds to sensing the presence of the pulse by generating a time-extended signal which the sound signal handling means can sample, thus relieving the computer from the necessity to continuously sample the transient signal source at a relatively high rate which ties up the central processor resources.
Abstract:
An apparatus and method for automatically converting an operating mode such as a telephone mode, a facsimile mode, a telephone/facsimile mode, and a telephone answer mode of a facsimile system. The apparatus includes an key input unit for allowing a user to set the communication system in an AUTO mode; a noise detector for detecting an ambient noise external to the facsimile system; a switch for enabling transmission of the detected noise level in response to reception of an automatic control signal; and a controller for generating, after the user has set the facsimile system in the AUTO mode, the automatic control signal to receive transmission of the detected noise level, for determining whether a person is present or absent from the vicinity of the communication system by comparing the detected noise level with a reference noise level, and automatically converting an operation mode of the facsimile system from any one of the telephone mode, the facsimile mode, and the telephoned/facsimile mode to the telephone answer mode to respond to an incoming call whether such an incoming call is from a telephone or from another facsimile system.
Abstract:
A device and a method for directing incoming calls from a single input telephone line to either a facsimile machine, a data modem, or a telephone is provided. The device and method provide for "isolating" both a facsimile machine and a data modem until after a predetermined delay period, thus preventing them to answer the call. If a person or answering machine has not answered the call within the delay period, an off-hook condition is simulated to the input telephone line, thus "answering" the call. The signal on the input telephone line is then detected. If the signal includes a DTMF digit, various functions are performed including resetting internal variables. If a facsimile handshake signal is detected, the facsimile machine is rung with a ring simulator. The facsimile machine can then read the incoming handshake signal and proceed in a conventional fashion. If, however, neither of these two signals are detected, and a telephone answering device has not answered the call, the data modem port is rung with the ring simulator. The data modem will then begin receiving the transmitted signal in a conventional fashion. If the call is answered during the delay period provided by the invention, and the transmission is a facsimile handshake signal, the call is automatically transferred to the waiting facsimile machine.
Abstract:
An improved telephone interface device communicatively couples a local telephone set to an inside telephone wire which, in turn, is communicatively coupled to an outside telephone line from a central office of a telephone service provider. The interface device includes an on-hold switch, a ring detector, a tone decoder, and a coupling switch, all of which are coupled to the bridge via an internal signal line and a control computer. The touch tone decoder receives input tone sequences from the bridge, decodes the tone sequence, and outputs a bit signal to the control computer. The on-hold switch is responsive to a command from the control computer, and is operative to maintain the signal line at a first predetermined voltage. The coupling switch communicatively couples the signal line to a node line. When the node line is coupled to the signal line, a user at the local telephone set may communicate with another user in the home, or with an outside user. The detector compares the voltage on the signal line with a plurality of predetermined voltage ranges. If the voltage on the signal line is within a predetermined voltage range, then the comparator outputs a logic high value to the control computer. A local phone connector is communicatively coupled to the local telephone set and to the node line. During intercom operations, DC power is supplied to the local telephone set via an intercom power switch and the local phone connector.
Abstract:
An auxiliary baseband telephone instrument interface is provided in an answering machine to which any auxiliary telephone instrument, whether corded or cordless, can be connected and can control the answering machine functionality by use of in-band control signals. More specifically, a controllable switch arrangement is employed to connect outputs of an auxiliary instrument jack to outputs of a telephone line jack to which the answering machine is connected, or to the answering machine functionality itself and to disconnect the outputs of the auxiliary jack from the outputs of the telephone line jack or the answering machine functionality. Use of unidirectional paths controlled by a plurality of switching elements allows the user of an auxiliary telephone instrument connected to the auxiliary instrument jack to privately screen incoming calls on a telephone line connected to the telephone line jack, which the answering machine has answered and to controllably access other remote features of the answering machine. During the private screening of a call, a user of the auxiliary telephone instrument can interrupt the answering machine operations by entering an in-band control signal and thereby intercept the answered call. Additionally, use of the controllable switch array enables a user of the auxiliary telephone instrument to answer incoming calls, if desired, or to make outgoing calls, if desired.
Abstract:
An electrical apparatus, associated with a telecommunications line, includes a unique dual input/dual output prescribed audio actuating signal responsive circuit. The responsive circuit pursuant to a detection of the prescribed signal, in combination with a second signal pursuant to a detection by line pickup detection circuit of an off-hook condition of the telecommunications line, effecting production of an actuating output signal. The actuating signal upon suitable application, effecting an operational function of a suitably coupled associated electrical device. The associated device may be one of a number of electrical devices. In the preferred embodiment of the invention, this device is designated to be a time-day-date-stamp marker signal outputting device. The marker signal may then be recorded by a suitable recording device or, alternatively, not recorded but simply used as an audible time-day-date announcement clock.