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Match Document Document Title
7440562 Phone line supervisory controls  
Controlling use of a telephone line includes receiving a specification from a first entity that defines one or more supervisory controls on use of a controlled telephone line by a second entity....
7200383 Subscriber authentication for unlicensed mobile access signaling  
A system for ensuring that a first subscriber in a unlicensed mobile access system is prevented from unauthorized use of a second subscriber's identity when the first subscriber requests services...
7177410 Local control of call features in a telephone system  
A residential phone system allows for local control of call features from any phone extension. The phone system may include a microcontroller that communicates along the phone lines at a...
6954632 Home network system  
A home network system that makes it possible to build a network with assured security, wherein network users need not have security expertise. For access attempts offered from a home node 21 - 1 ...
6590968 Lockout apparatus for controlling communications on a single line telephone system  
A lockout apparatus for controlling communications on a single line telephone system. The lockout apparatus includes a principal telephone connected to a remote telephone network. A switch is...
6590967 Variable length called number screening  
A system for preventing telecommunications fraud, the system comprising a database, at least one processor and related software, the at least one processor receives and stores numbers representing...
6542583 Caller identification verification system  
A process, apparatus and system are disclosed for verifying the authenticity of a user before providing the user with a desired service. The process involves first receiving a request from the...
6321094 Access method through radio mobile communication system  
In a network system including a wireless mobile communications system, when establishing a connection between a wireless mobile terminal and a host computer connected to a stationary network...
6275573 System and method for secured network access  
Secured connections are provided over a telephone access network using encryption/decryption equipment installed at a customer's premises and at a network facility. For outbound calls, the access...
6246756 Method and system to meter and control usage of telephone systems  
A method and a system to meter and control the usage of a telephone. The metering and control functions are applicable for specific outgoing or incoming destination, the specific user of the...
6178236 Method and system for providing password protection  
Access is granted to a portion of a computing system, such as to a configuration menu of a telephone system. In order to grant access, a password is received from a user. A variable password is...
6160872 Apparatus and method for preventing disconnection of consumer premises equipment  
An apparatus connected to a telephone line automatically detects the presence of modulated data (i.e. modem data, modem carrier signal, facsimile data and the like) that is being sent or received...
6061438 Extension-in-use exclusion apparatus  
An extension-in-use exclusion apparatus is for use in a telephone system. The system has a telephone device, a telephone line, and two telephone extensions connected to the line. The apparatus is...
5978461 Telephone switching system with internal and external channel  
A telephone switching system is provided for use with an external telephone line and a plurality of telephone extensions wherein each extension has a plurality of "touch tone" buttons which, when...
5963627 Communication terminal having function for displaying originator identification data  
A communication terminal connected to an analog telephone network and has a function for transmitting an incoming call signal with originator identification data inserted. Notification of an...
5937058 Coordinating telephones or adjuncts on the same loop  
When two or more telephone sets are in use on the same subscriber's loop, their activities may not be properly detected or monitored by the central office switch. The present invention provides a...
5818931 Telephone line access control apparatus  
A telephone line access control apparatus to restrict access to an outgoing telephone line may be placed in a locked mode to restrict access to the telephone line, or in an unlocked mode to enable...
5706342 Method and apparatus for off-hook detection  
An apparatus for detecting an off-hook condition on a telephone, the apparatus being connected to the tip line and the ring line of a telephone line, a first potential difference existing between...
5583924 Caller ID and call waiting for multiple CPES on a single telephone line  
In accordance with the present invention, provided is a system allowing a plurality of conforming customer premise equipment ("CCPEs") on a single telephone line to display a third party's caller...
5561706 System for managing access by mobile users to an interconnected communications network where a billing authority is identified by a billing code from the user  
A method and apparatus for managing a communications network for mobile users, each of which has a personal identification number, includes a network of communications switches for connecting calls...
5559873 Telephone privacy device with conference and indicator features  
A simple and inexpensive telephone exclusion or privacy device. A conference feature is and am indicator light showing when the line is in use are also provided. The basic exclusion or privacy...
5535269 Additional direct inward dialing connection system  
An additional direct inward dialing connection system includes a determining section, announcement machines, and a connection control section. When a direct inward dialing number from a caller is...
5535265 Method and circuitry for controlling voice mail, call logging and call blocking functions using a modem  
A telephone line monitoring circuit for a MODEM monitors the TIP and RING lines of the telephone line. A first circuit of the monitoring circuit detects when a local phone goes off-hook while the...
5502760 Telephone-line dedicating apparatus  
A telephone-line dedicating apparatus which is connected between an external telephone-line and a specified telephone-line utilization apparatus such as a telephone-set, facsimile machine or the...
5483573 Electric circuit connector with auto-termination  
A connector unit (21) for automatically terminating a digital data services (DDS) line whenever a mating modular plug (30) is not inserted into the connector. The connector utilizes a switchable...
5469499 System for securing access to equipment connectable to a telephone communication channel  
A system for accessing equipment connectable to a secured telephone communication channel by sensing ringing current on an access telephone communication channel. Ringing current on the secured...
5444772 Telephone line lockout device  
A telephone extension controller for permitting controlled access of telephone line from one of a given number of extension telephones coupled thereto when each extension telephone is controlled...
5402482 Ring trip deciding circuit  
A ring trip deciding method in a ring trip circuit detects voltage change in the on-hook state and the on-hook state of a terminal when the terminal such as telephone set connected to the telephone...
5283825 Telephone adaptor for telephone sets  
A telephone adaptor unit for a telephone set connectible, with other like telephone adaptor units for other telephone sets, between the respective telephone set and a common telephone line,...
5231658 Telephone privacy device  
A telephone privacy protector for connection to a common exchange line and each one of at least two telephone operated devices sharing a line includes a voice connecting circuit for connection...
5231657 Cordless telephone system that releases hold state of handset after intrusion by another party is detected  
A cordless telephone system includes a base unit connected to both a subscriber line and at least one branch telephone, and a mobile unit capable of being coupled to the base unit over a radio...
5056083 Telephone apparatus and a method of controlling same  
This invention relates to a telephone apparatus and a method of controlling the telephone apparatus, wherein, where a calling operation conflicts with a call-receiving operation, calling processing...
4899372 Multi use telephone extension control circuit and device providing lockout for privacy  
A circuit/device that can be designed into new telephone subsets as well as connected to existing telephones to prevent unwanted telephone extensions from interfering with the controlling...
4807278 Telecommunication controller having a telephone line sharing function  
A control system has two switches for connecting a telephone device and a data device to a common telephone line. Separate circuits are provided to sense the current flowing between the telephone...
4747128 Telephone privacy protector  
This invention is a telephone privacy protector to be interposed between a common exchange line and each one of at least two telephones sharing the line. The device includes a voice connecting...
4703499 Distributed privacy oriented telephone extension system  
A distributed privacy oriented telephone extension system having up to three different kinds of privacy circuits of different capacity for coupling a respective extension phone to the telephone...
4661973 Minimization of distortion due to a voice coil displacement in a speaker unit  
A speaker of a type having a voice coil wound to a greater length than the length of a magnetic gap into which it extends formed between a pole of a yoke and an annular plate. A magnetic flux...
4640988 Telephone interrupter  
A telephone interrupter for use in a telephone system having low priority and high priority telephone equipment sharing a common telephone line. The low priority equipment is connected to the line...
4590331 Hostage negotiation telephone system  
A portable self-contained telephone system for use in hostage negotiation and barricade situations is disclosed. The system is powered by a battery pack or AC power source and provides telephone...
4443665 Privacy and hold circuit for telephone  
A simplified combination of privacy circuit (U1) and holding circuit (U2) for use on a telephone subscriber loop (11). The circuit arrangement includes a diode array (31-34) within a conventional...
4434328 Remotely actuated telephone instrument connection block having instrument lockout feature  
A lockout circuit improves a remotely activated loop testing connection block for disconnecting a telephone subscriber's service instrument from a telephone tip and ring line pair during a test...
4218590 Key telephone system having automatic exclusion circuit for line privacy  
The exclusion circuit disclosed herein provides for line privacy in a key telephone system of the type in which a control unit provided at each of a plurality of stations can be operated to...
4136266 Telephone intruder alert system  
A telephone intruder alert system is operative for indicating to a current on-line user of a primary extension telephone which is already interconnected with the telephone line of the subsequent...
4072827 Telephone patching apparatus  
For use in telephone answering service installations, a circuit device is disclosed for bridging or patching external calls, such as an incoming call to a dialed-out call, and for timing the...
4021621 Automatic group exclusion circuit for a key telephone system  
The exclusion circuit includes a normally de-energized relay and a normally non-conducting Darlington pair circuit powered from the key telephone system power supply. The Darlington pair circuit is...
3936616 "Wild" mobile disable circuit  
A circuit for disabling, or shutting down, the transmitter of a mobile telephone unit when the unit is not connected to another party is disclosed. When such a "wild" mobile is sensed, a sequence...
3935402 Loudspeaker voice coil arrangement  
A loudspeaker voice coil assembly having improved power handling capability is disclosed. The voice coil is wound of rectangular cross section aluminum wire having flexible anodized coating. A thin...
3760120 LOCKOUT SELECTION CIRCUIT  
In a system in which a number of units operate one at a time with common apparatus, a lockout circuit comprises a set of NAND gates, one for each unit. Each gate has a seize input normally at...
3702905 MULTI-STATION SHARED AUTOMATIC DIALING APPARATUS  
The use of an automatic dial-signal generating means is shared by a plurality of stations each having its own telephone line. Each station has a plurality of selective controls each operable to...
3517137 COMBINATION VOICE AND DATA TELEPHONE SUB-SET  
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