Abstract: The invention concerns an identification method and circuit (1) of the network type of parameters contained in an integrated circuit chip, comprising a single input terminal (2) for applying a signal (E) triggering an identification, the output terminals (3i, 32, 3i-1, 3, 3n-1, 3n), adapted to deliver a binary identifying code (B1, B2, Bi-1, B, Bn-1, Bn), first electrical paths P1, P2, P, Pn), individually connecting said input terminal to each output terminal, and means (4, 5, 52, 5, 5n) for simultaneously integrating the binary states present in output of the electrical paths, each path inputting a delay sensitive to technological dispersions and/or of the integrated circuit fabrication method.

Abstract: The specification discloses a method for security control of network distant input using caller ID, which uses an ID decoder to decode and extract a caller ID from an incoming message and determine whether the caller ID exists in its database before starting a password checking step. The invention also discloses the corresponding device.

Abstract: A communication apparatus is provided for communicating with an external device. The communication apparatus may be a facsimile machine which includes a main phone, and a plurality of secondary handsets capable of communicating with the external device via the main phone. The main phone includes an identification data storage for storing identification data of the external device in a manner such that the identification data is linked to one of the secondary handsets, an identification data detector for detecting the identification data of the external device, an identification data registration checker for determining whether or not the detected identification data is registered in the identification data storage, and a calling sound generation command issuer for causing only one of the secondary handsets to ring when the detected identification data is registered in the identification data storage.

Abstract: An exchange system displays caller information on the display of a subscriber terminal during call switching. The exchange system includes a plurality of extension terminals, each having a display, an operator for switching a call between a subscriber and a caller, and an exchange for switching the call among the extension terminals, the operator and the caller. The exchange transfers a call reception message to the operator upon receiving an incoming call from the caller, and the operator transfers a hook-off message to the exchange in response to the call reception message received. Then, responding to the hook-off message received, the exchange forms a communication path between the caller and the operator, and the operator receives information about the caller and the subscriber with whom the caller desires to talk through the communication path, and then transfers a message corresponding thereto to the exchange.

Abstract: The present invention provides apparatus and method for automatic number identification (ANI) for a data access arrangement (DAA) of a modem. Modems or telephones equipped with an ANI system use the caller ID (ANI) signals to identify the calling telephone or modem. For automatic number identification, the invention uses a new switch element on the secondary winding side of a transformer and a standard DAA circuit on the primary winding side of the transformer. The invention does not require an additional AC coupling path for the caller ID (ANI) signals. During an ANI operation, the new ANI switch on the secondary winding side is opened so that the impedance looking into the modem from the telephone line side becomes relatively high and the prior art voltage divide effect is eliminated or reduced.

Abstract: A controller for residential telephone wiring. Apparatus associated with the controller provides multiple communication channels on ordinary residential telephone wiring. The controller (1) routes incoming calls to a selected telephonic device within the residence, (2) routes outgoing calls to a free external line servicing the residence, and (3) routes calls within the residence from one telephonic device to another.

Abstract: A system and method for altering an incoming ring signal to produce a selected ring signal on a telephone device. The incoming ring signal is accompanied by a caller ID packet and provided by a telephone utility provider responsive to a call made by a caller. The communication system includes a system console and at least one addressable extension module. The system controller and each addressable extension module are in communication with the telephone line. The system console includes (i) means for decoding the caller ID packet to determine the identity of the caller, (ii) a storage device for storing saved caller information including caller identities and corresponding ring control information, (iii) means for selecting ring control information from the saved caller information and the identity of the caller, and (iv) means for providing the ring control information to the telephone line. Each addressable extension module additionally communicates with a respective telephone device.

Abstract: The present invention provides apparatus and method for automatic number identification (ANI) for a data access arrangement (DAA) of a modem. Modems or telephones equipped with an ANI system use the caller ID (ANI) signals to identify the calling telephone or modem. For automatic number identification, the invention uses a new switch element on the secondary winding side of a transformer and a standard DAA circuit on the primary winding side of the transformer. The invention does not require an additional AC coupling path for the caller ID (ANI) signals. During an ANI operation, the new ANI switch on the secondary winding side is opened so that the impedance looking into the modem from the telephone line side becomes relatively high and the prior art voltage divide effect is eliminated or reduced.

Abstract: There is provided a phone control system for a life safety network which comprises a panel arrangement, a control center module, a loop controller module, a transponder and a remote handset. The panel arrangement has a local rail for receiving a plurality of control modules and for interconnecting the control modules in which inter-module data is transmitted and received along the local rail. The control center module and the loop controller module are control modules positioned on the local rail. The control center module includes a processor, a memory portion, input keys for receiving user input, an output screen for displaying alpha-numeric text output, a central handset for communication of voice messages along a voice communication line. Similarly, the loop controller module includes a processor, a memory portion, and a data line interface for receiving and transmitting loop controller signals along a loop controller line. The transponder and remote handset are position remote from the panel arrangement.

Abstract: A "breakout" of telecommunications toll calls on a per-station basis is provided to households or other telecommunications endpoints which have subscribed to only a single analog telephone line. Subscribers wishing to avail themselves of such "station set billing" will have purchased and installed telephone stations sets which are adapted to transmit to the telecommunications service provider, during a call, e.g., at the start thereof, a signal carrying a code which identifies that station set. The subscriber, additionally, will have registered the station set's code, which may be marked on the bottom of the instrument, with the telecommunications service provider. Thus the service provider is able to identify which station set within the household a call is being made from or to which a collect call is being made.

Abstract: An interdiction device and method to jam or delete selected video and telephony signals. The interdiction device includes amplifiers and forward couplers to prevent the telephony signals from appearing at other undesired subscriber locations on the network.

Abstract: The device and method of the present invention characterizes a telephone call by identifying a code, comparing the code to a predetermined access/ID code and generating a signal in response to the code. The device provides called party identification, calling party identification, and telephone number identification.

Abstract: A system is provided for connecting multiple elevator (700-703) speaker/microphone pairs (114a-114d) to a remote terminal (750) via a standard telephone channel (50). The system comprises generating means (116) for generating an in-use signal from within one of the elevators indicating the use of the speaker/microphone pair in the elevator. The system also includes a dialing means (100a-100d) responsive to the generating means for dialing a number associated with the remote terminal on the standard telephone channel so as to contact the remote terminal. The system further includes first isolating means (200a-200d) for isolating all remaining speaker/microphone pairs from the standard telephone channel, and first connecting means (200a-200d) for connecting the in-use speaker/microphone pair to the standard telephone channel so as to connect the in-use speaker/microphone pair to the remote terminal.

Abstract: A dial controllable conditionally operative device which is directly connectable to the ring and tip lines of a subscriber loop. "On-hook" coupling is provided to allow the device to provide the conditional operation of one or more of the functional capabilities of a standard telephone. The device is usable in parallel with at least one standard telephone to provide a controlled telephone system. The device may also be usable in an intercommunication system using the ring and tip lines of the subscriber loop.

Abstract: A control system for a plurality of telephone sets connected as branched to a central office line allows extension calling, privacy function setting and hold releasing operations between the telephone sets. Each of the telephone sets in the branched connection comprises keys through which a control data corresponding to a desired control operation is inputted, a transmission circuit for sending to the central office line a control signal corresponding to the control data inputted by the keys, a reception circuit for receiving the control signal from the line, and a control circuit for performing a predetermined control operation on the basis of the control signal received by the reception circuit, whereby the respective operations of the telephone sets are mutually controlled on the basis of the control signal.

Abstract: The invention provides a tip party identification facility in association with a subscriber line interface circuit. The tip party identification facility takes advantage of a shutdown feature and the output of a common mode error amplifier of the subscriber line interface circuit. The use of this facility enables the central office to determine whether the tip party or ring party is off-hook for billing purposes.

Abstract: A selective ringing circuit for a telephone line includes a rectifier which is normally connected to the telephone line for rectifying the AC ringing and other signals. The rectified ringing signals will not activate the ringing circuit of the telephone equipment, because a capacitor in the ringing circuit is charged and will not pass current therethrough in response to the DC signal. The selective ringing circuit includes a switch-selective signal-detecting arrangement by which a predetermined one of the ringing signals is detected and is used as an activation signal, while the other ringing signals are rejected. The activation signal activates an electrical connecting device which, when activated, electrically bypasses the rectifier and directly electrically connects the predetermined selected ringing signal to the telephone equipment. An automatic number identification circuit includes a transistor switch which connects a predetermined ground resistance to the telephone line.

Abstract: A circuit for connection into a telephone line for detecting when a telephone instrument has gone off-hook and which is unaffected by the presence of a ringing signal on the telephone line. The circuit comprises a transistor switch, a first plurality of series connected diodes connected in series with the telephone line for developing a first voltage thereacross when the telephone instrument has gone off-hook, an RC circuit coupled to the first plurality of diodes for charging to the first voltage when the telephone instrument has gone off-hook after a time delay and for activating the switch, a second plurality of series connected diodes, the second plurality being greater than the first plurality, the second plurality of diodes being connected to the switch and to the first plurality of diodes for developing a second voltage thereacross during one half cycle of a ringing signal on the telephone line.

Abstract: An automatic telephone number indicating device for connection within the tip or ring line of a telephone circuit of one party of a multi-party circuit for applying a ground mark in response to an interrogation signal from the telephone central office when the party having the device has taken the phone off hook including a current detection circuit connected within the remote telephone circuit for detecting a current caused by the phone being placed off hook. An enable circuit is triggered by the current detection circuit and is held triggered by a time constant circuit for a predetermined time period. A ground mark circuit connects the ground mark between the ground and the tip line or tip and ring lines. A voltage monitor circuit is rendered conductive in response to a voltage across the tip and ring lines, which disables the ground mark circuit. The central office interrogates the circuit by removing the voltage across the tip and ring lines thereby permitting the ground mark to be applied.

Abstract: A personal telephone adapter is disclosed which may be connected as an extension on a telephone line and which permits a caller to reach any of several extension telephones within a home or office without a human operator. A ring detector detects an incoming call and begins the operation of a timer, which, after a predetermined time, establishes a connection between the caller and a tone detector in the telephone adapter. Then, the caller may provide an extension signal selecting an extension and, in response, the tone detector in the adaptor at that extension will begin an output such as a tune to a user near the adapter. The user may then pick up the receiver of a telephone instrument and talk to the caller and, for a limited time after picking up the receiver, the user or caller may dial an additional extension signal to another adapter also connected as an extension to the telephone line.

Abstract: A party line interface for permitting the connection of a standard telephone to a telephone central office which rings selected subscribers by applying a DC ringing potential of a selected polarity to a selected one of the tip and ring lines of the party line and a ringing tone is disclosed. The interface includes a signal path having two lines with each line having an input terminal and an output terminal. The input terminals are respectively adapted to be connected to the ring and tip lines of the party line. A programmable switching means is coupled to the signal path for selectively applying the ringing signal received by the party line interface to the output terminals for application to the ringing mechanism within the standard telephone as a function of the polarity of the DC component and ground reference applied to the input terminals by the telephone company central office.