Matches 1 - 50 out of 88 1 2 >
Match Document Document Title
7516219 Consumer configurable mobile communication web filtering solution  
Consumer configurable mobile communications solution enabling web filtering based on policy-enforcement services allowing authorized users to define, manage and enforce restrictions for mobile web...
7377952 System and method for removing contaminates from the air in a mail-sorting room  
An air decontamination system including a sealed room to hold at least one person and the sealed room having an air inlet. The system further including a vacuum unit to create a negative pressure...
7200220 Portable telephone maintenance service system and maintenance service method  
A portable telephone maintenance service system and maintenance service method for backup control of a portable telephone set, to make it possible to prevent misuse by third persons and to perform...
7142663 Global directory service with intelligent dialing  
A central directory system for a network of dial-up communication devices is described. In a preferred embodiment, the communication devices are videoconferencing devices. The system includes a...
7106842 Method of detecting cut-off calls in a switching system  
A system and method for detecting cut-off of calls in a switching system records data corresponding to connection of a call in a first memory, records the call connection data in a second memory,...
7046755 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with switchable time constants  
A digital direct access arrangement (DAA) circuitry may be used to terminate the telephone connections at the user's end that provides a communication path for signals to and from the phone lines....
6968049 Transmission of charging signals on a data transmission path  
An apparatus for transmitting charging signals on a data transmission path having a line impedance includes a driver device for setting a line voltage level that corresponds to the line impedance....
6956942 Multi-modal address book  
A multi-modal address book for a customer associated with at least one account in an electronic communications environment is provided. The multi-modal address book is associated with a customized...
6813353 Redundant operation of ring voltage generators utilizing voltage bus segmentation for fault isolation  
A redundant ringing signal generator subdivides a ringing signal bus into multiple ringing bus segments. A plurality of redundant ringing voltage generators sourcing internally and/or externally...
6810120 Method of determining answer supervision at a line appearance of a public switch telephone network  
Audible ring, which is provided to all line appearances, is detected and used to determine whether or not a far end party has answered, i.e., answer supervision, for equipment connected to the line...
6766016 Supervisory control system  
In a supervisory control system where an upper supervisory control terminal supervises and controls transmitting devices, the upper supervisory control terminal has two supervisory states. The...
6549546 Call cut-off detection circuit for switch and method of the same  
A call cut-off detection circuit for a switch and a method of the same are disclosed. The circuit includes a time switch unit switching a first PCM data, a COB processing circuit combining the...
6498847 Dialer programming and device with integrated printing process  
An improved account access system and device in which a portable electronic card may be loaded into a combined programming and printing system to be programmed with predetermined signals and...
6411693 Long distance modem warning  
A computer implemented method is disclosed for automatically intercepting and analyzing computer modem commands for toll characteristics andthen alternatively permitting or preventing the computer...
6343300 File updating method capable of updating an operation file without interrupting online processing  
An input/output control device ( 11 ) comprises a dual processor system. Supplied with a file update request, first and second processors ( 12, 14 ) perform individual processing independently of...
6272212 Telephone intercept apparatus and method for intercepting an outgoing telephone number  
A telephone intercept device interposed between a telephone company network and telecommunications equipment in a consumer unit. The telephone intercept device monitors outgoing telephone numbers...
6256379 Method and system for conveying supervision information  
A method and system for conveying supervision information to a call processing system using an intelligent network is provided. A call originating at the call processing system is received by a...
6192123 Method and apparatus for initiating telephone calls using a data network  
In accordance with the present invention a process for initiating a telephone call, comprises the steps, performed by a processor, of: receiving a network request identifying a telephone number and...
6185294 Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling  
A doorbell response system in used in a dwelling including a telephone line and a telephone. The doorbell response system includes a doorbell, doorbell button, speaker, microphone, dialer to...
6154724 Energy based pulse position detector for telephone wire networks  
A system for detecting a pulse position is provided in a telephone wire network. An absolute value detector determines the absolute value of a received pulse signal supplied from a telephone wire,...
6114970 Method of assigning a device identification  
The present invention provides a method of assigning a unique device identification to an electronic device coupled into a communication architecture. Once coupled into the communication...
6088437 Call processing system, method and computer program product  
A system, method and computer program product implement a Virtual Network Call Processor with a CALL PULLBACK mechanism for providing a type of screened call transfer. Callers, while attempting to...
6072869 Adaptive method and apparatus for detecting a stutter dial tone signal  
A method and apparatus for detecting a stutter dial tone SDT signal. The method includes the steps of, receiving a received signal from a subscriber loop, generating a signal envelope of the...
6052459 Method and arrangement for signalling systems  
The invention concerns a method and an arrangement for selecting a signalling system. The inventive method comprises the steps of storing an information about various parameters of alternative...
6028927 Method and device for detecting the presence of a periodic signal of known period  
The present invention proposes a method and a device for detecting, amongst a set of signals, the presence of a periodic signal of period of occurrence T, in which a signal discriminating the said...
5987121 Allowing stand-alone and local control of a single LED  
A telephone having key/light control logic which enables independent and dual usage of physical key/light pairs. Firmware within the telephone's key and light control logic is provided access to...
5982874 Transmission system with improved tone detection  
In a transmission system a pair of signalling tone signals is transmitted by a transmitter (2) to a receiver (6) via a transmission channel (4). In the terminal (6) a tone detector is used to...
5982875 Process and apparatus for interaction between a telephone and its user  
The present invention relates to a telephone which has, on account of its many functions, a multistage menu structure for operator prompting. In order that a user does not have to remember the...
5970415 Method for handling collision of calls  
A method and a subscriber unit and a subscriber network element, in a radio system provided with a wireless local loop, for handling a collision of an outgoing call from the subscriber unit and a...
5959372 Power management circuit  
An improved power management circuit for regulating current on a loop converts a high voltage, low current loop circuit to a low voltage source for devices associated with the loop. Additionally,...
5943418 Ring-trip circuit  
A ring-trip circuit monitors the voltage developed across a source resistor coupled to one of the leads of the subscriber line circuit, regardless of the ringing frequency of the ringing voltage...
5937039 Method for sending out absent messages from ISDN exchange system  
A method for sending out absent messages in an ISDN exchange system to which digital telephones with a plurality of function keys and a LCD screen are connected as extension subscribers. When an...
5933487 Method and apparatus for searching a plurality of destination numbers  
A method and apparatus for improving call connection to one of a plurality of destination numbers on a calling list is disclosed. The method involves monitoring the inband signals between an...
5930349 Command signals generator circuit for telephonic fees indicators  
The present invention relates to a control signal generation circuit for telephone charge indicators comprising a capacitor having a first and a second terminals connected to ground through...
5926523 Apparatus and method of recognizing establishment of speech channels in communication appliances connected in parallel to a common telephone line  
An apparatus for recognizing an establishment of speech channel in communication appliances connected in parallel to a common telephone line includes a hook switching unit for establishing a speech...
5859905 Cycle-modulating type of dual-tone multifrequency generator  
A cycle-modulating DTMF generator for generating a DTMF signal; the generator comprises a programmable time-pulse generator, counters or up/down counters, a memory unit for storing data, a digital...
5859896 Telephone line automatic prefix dialer  
Apparatus for eliminating the necessity for manually dialing a local area code as a prefix to a call within the same area code in telephone systems in which such action is a requirement. An...
5850436 Communication between a telephone and a computer system  
A method and apparatus provide communication in a telephone system connected to an external phone line, wherein the telephone system has a telephone line, a telephone, a phone interface unit...
5848149 Subscriber line interface and power circuit  
A subscriber line circuit which truly implements all of the BORSCHT functions and which does not rely on an external ringing generator to provide the ringing voltage when needed is disclosed. This...
5835581 Multi-function telephone dialer display  
A multi-function telephone dialer display device which is equipped with a display screen for displaying the use status and the caller identification information, and a dialer for responding to data...
5732124 Apparatus and method for detecting the status of a PCM channel  
An apparatus and method are provided for determining the activity status of a PCM channel in a telecommunications system. The method (600-680) and apparatus (400) utilize a codec (220) within the...
5712910 Ring trip circuit having a simple trip detecting circuit of a high response speed  
In a ring trip circuit, a trip detecting circuit includes a low pass filter connected to opposite ends of a first resistor detecting an AC ringing signal, a diode bridge connected to an output of...
5692040 Method of and apparatus for exchanging compatible universal identification telephone protocols over a public switched telephone network  
A method of and apparatus for providing compatible universal identification telephone protocols by generating predetermined unique audio sequences recognizable by the telephone user as defining...
5675643 Line card that provides remote line activation and soft dialtone  
A line card apparatus which provides soft dialtone and automated remote cross-connect capability, comprising one or more line interfaces and a switching matrix which can connect a plurality of...
5655012 Private branch exchange apparatus  
In a private branch exchange apparatus having a plurality of extension ports, each extension port capable of connecting a push button telephone and a general standard type telephone in parallel,...
5640449 Communications device to establish call in ISDN system  
A communications device, connectable to a digital network, such as an ISDN, for setting up a voice call to a remote telephone via the network, the device comprising logic for sending a call signal...
5636270 Method of producing signals commonly used with telephones  
This invention describes a universal method of producing a plurality of analog telephone signal types, commonly used repeatedly, with telephone peripheral, terminal and central office equipment,...
5612995 Method for activating a lamp on analog customer premises equipment by a digital signal  
An apparatus and method for illuminating a message lamp on analog customer premises equipment (CPE) under the control of a digital switch. A message conversion circuit (MCC) which is positioned...
5515430 Volume controller  
A telephone exchange operating on a volume controller provided with functions for inputting digitized speech data and volume control data, and converting a volume of the inputted speech data. A...
5461669 Telecommunication network with separate call control and connection control  
A telecommunication network in which call control and connection control are separated comprises switching nodes each comprising a call and service control point implementing all signalling...
Matches 1 - 50 out of 88 1 2 >