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| Number | Title | Issue Date |
| 8036360 | System and method for hook state notification In one embodiment of the invention, a method produces a hook status notification. The method comprises detecting an off-hook state, allocating a half-dialog identification, generating an off-hook notification message, and associating the half-dialog identification w... | 10/11/2011 |
| 7327838 | System and method for integrating call delivery for fixed-site and mobility services A system and method for call forwarding between a subscriber's fixed-site and mobility devices. An incoming call is received that is directed to a fixed-site device belonging to the subscriber. When a busy/no-answer condition is detected at the fixed-site device, a ... | 02/05/2008 |
| 7301661 | Communication terminal device and method of controlling same A communication terminal device which comprises an SIP call control unit that performs call control by using an SIP (Session Initiation Protocol), a recognition unit that recognizes that a calling has become an error according to a response signal sent back from a c... | 11/27/2007 |
| 6947730 | Method enabling mobile telephones to have automatic multiple telephone number dialing capability to a same called party The invention is to provide a method enabling mobile telephones to have automatic multiple telephone number dialing capability to a same called party consisting of establishing a database recording a plurality of telephone numbers of a called party set by a user in ... | 09/20/2005 |
| 6922465 | Method and system for reporting events in telecommunication networks Methods and systems are provided for reporting to subscribers network events in a plurality of formats and languages depending upon the particular subscriber group to which a subscriber belongs. When a subscriber requests a call, a switching node in the network invo... | 07/26/2005 |
| 6823057 | Methods and apparatus for notifying subscriber's of forwarded calls Methods and apparatus for implementing call forwarding services using AIN techniques and next event list messages are described. Methods of notifying a subscriber of a call forwarded using AIN techniques are also described. In accordance with one feature of the pres... | 11/23/2004 |
| 6563915 | Method and apparatus for an automatic barge-in system The invention provides a system that includes a method and apparatus for automatically barging-in on telephone calls. When a first party is talking to a second party, a third party may be automatically connected to the first party and the second party giv... | 05/13/2003 |
| 6418217 | Arrived call receiving system for supporting reception services using telephone and receiving method therefor An arrived call receiving system including a caller's number automatic recognition unit for extracting and recognizing a phone number included in an arrived call, an automatic answering unit for confirming by the caller whether the recognized phone number... | 07/09/2002 |
| 6324281 | Procedure for the processing of an unexpected disconnect request The invention relates to a procedure for the processing of an unexpected disconnect request in an access node (AN) which is connected to a local exchange (LE) over a V5 interface. In the access node (AN), call setdown is effected by means of a disconnect ... | 11/27/2001 |
| 6208723 | System and method for enhanced automatic recall A telecommunications system and method is disclosed for allowing an attendant to initiate an automatic recall feature for a third party when that third party's line is busy. When a calling party dials a number associated with an attendant, e.g., a switchb... | 03/27/2001 |
| 6088440 | Method and apparatus for operating a telephone exchange having selectable audio sources A telephone exchange transmits audible signals to a subscriber line to indicate exchange or network conditions. The audible signals to be transmitted to the subscriber line are selected from one or more available audible signal sources according to the co... | 07/11/2000 |
| 6023505 | System and method for providing a busy signal to a communication A system and method to provide a busy signal to a communication without a terminating network element providing answer supervision and without the originating caller associated with the communication being charged for the communication. A communication th... | 02/08/2000 |
| 5761277 | personal mobile communication system We have recognized that in the prior art, to insure that there is at least some communication between the calling and called parties, when the called party is unavailable to take a call, the calling party may be connected to an alternate destination, e.g.... | 06/02/1998 |
| 5737403 | Interaction of routing features in a telephone system Techniques for analyzing interactions of call routing features in a telephone system and implementing the features. Analysis and implementation are based on the recognition that a customer intends a call routing feature to apply to a telephone number whic... | 04/07/1998 |
| 5712902 | Telecommunications answering feature method and apparatus In a telephone system, if the telephone set of a called party is busy or an incoming call is not answered, the called party is unavailable. In this event an incoming call may progress to become intercepted at an attendant position or at a voice features s... | 01/27/1998 |
| 5668861 | Telecommunications system with notification hold Apparatus and a method of implementing a notification and hold service in a telephone network is disclosed. A calling telecommunications device is placed on hold by the called telecommunications device, and signals an auxiliary computer system through a n... | 09/16/1997 |
| 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 to the network to establish a call via the network to a lo... | 06/17/1997 |
| 5583564 | Intelligent call forwarding with videophone display of forwarding destination Intelligent call forwarding is implemented through an intelligent network. The intelligent network includes a Service Switching Point (SSP), a Service Control Point (SCP), and a Service Management System (SMS). A call to a network subscriber is routed to ... | 12/10/1996 |
| 5530931 | Method and apparatus for providing a look ahead feature for enhanced call forwarding in a telecommunications system A method and apparatus for providing an enhanced Call Forwarding Don't Answer feature is disclosed. When an originating address calls a base address assigned the Call forwarding Don't Answer feature and the call is forwarded to a remote address, a Look Ah... | 06/25/1996 |
| 5499287 | FAX-telephone interface circuit An improved telephone interface box which interfaces an incoming telephone line to either a modem or a telephone handset is disclosed. The choice of connection is made by a controller that answers incoming calls and determines if the call is to be directe... | 03/12/1996 |
| 5479495 | Method and system for automatically accessing and invoking switch-based services in an advanced intelligent network A method and system is provided for use in an Advanced Intelligent Network (AIN) for automatically accessing and invoking existing switch-based services without going off-hook. To be operative, the Advanced Intelligent Network must be equipped with O-call... | 12/26/1995 |
| 5408527 | Exchange system and method of connecting calls in said exchange system Disclosed is an exchange system, to which a plurality of extension terminals are connected, for effecting a connection to any of the extension terminals upon receiving, from a network, incoming-call information which includes at least extension terminal d... | 04/18/1995 |
| 5341414 | Calling number verification service A system which uses Automatic Number Identification (ANI) equipment and techniques and/or Caller ID equipment and techniques to provide a means for telecommunicators to verify if identifying information such as their telephone number or the location they ... | 08/23/1994 |
| 5315649 | Toll call telephone service center A toll call service center of the present invention is accessible by subscribers to a toll call service. One or more of the subscribers of the service have their own set of identifiers uniquely associated with a plurality of called stations desired to be ... | 05/24/1994 |
| 5309512 | Call waiting deluxe feature A call waiting deluxe method where a switching system forwards calls to a service node that provides specialized call processing, e.g., processing requiring text-to-speech, to a number of switching systems without requiring modification of the hardware de... | 05/03/1994 |
| 5303290 | System for elminating glare in virtual private line circuits This application discloses a system for eliminating a busy line condition and completing a call over a virtual private line when the stations at each of the lines attempt to initiate a call simultaneously. The system is implemented in three phases. In a f... | 04/12/1994 |
| 5197096 | Switching method and apparatus having subscriber state management function A switching system is provided in which when a calling subscriber has transmitted an identification (ID) number of a called subscriber and an ID number of the calling subscriber from a calling terminal to a switching equipment having a subscriber control ... | 03/23/1993 |
| 5195131 | Private branch exchange system A private branch exchange system having a call forward busy function wherein, when a busy incoming-call destination terminal receives a further incoming call, the further incoming call is informed to both of the busy incoming-call destination terminal and... | 03/16/1993 |
| 5027384 | Personalized automatic call routing A user programmable telecommunication system for allowing calling parties to select optional call completion destinations during busy and no-answer status conditions. A telephone user can program the system to provide personalized voice responses to calli... | 06/25/1991 |
| 5023868 | Automated call handling apparatus A computer connected to an ISDN switch via an ISDN digital subscriber line, has shared cell appearances with a number of telephone stations connected to the switch and on the basis of shared call appearance associated messages from the switch, controls th... | 06/11/1991 |
| 5018194 | Electronic switching system having call-forwarding function An electronic switching system having a call-forwarding function for effecting call forwarding between subscribers. Discrimination information is added to call forwarding data for respective subscriber terminals. The discrimination information indicates w... | 05/21/1991 |
| 4873717 | Call coverage arrangement A call coverage arrangement in which coverage personnel are informed of the switch-hook status of covered terminals by way of a single two-part indicator on the coverage terminal. The two-part indicator indicates switch-hook status for any one of a number... | 10/10/1989 |
| 4807279 | Remotely programmable call forwarding control device An apparatus and method is provided for remotely cancelling or reprogramming the call forwarding service provided by the telephone company on the customer/user's telephone line. A microprocessor is utilized in conjunction with external memory provisions a... | 02/21/1989 |
| 4768224 | Single telephone line call forwarding device A device for enabling call forwarding instructions to be given from any telephone need be connected only to the phone line for which call forwarding service has been procured and does not require another phone line to communicate with the device. The devi... | 08/30/1988 |
| 4723273 | Discretionary call forwarding A call forwarding method that allows the called party to selectively forward individual alerting calls based, for example, on the calling party identity or on how busy the called party is at any given time, but without requiring the called party to first ... | 02/02/1988 |
| 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 line. Selective user configuration of the telephone extension... | 10/27/1987 |
| 4677663 | Telephone answering and call forwarding improvement An improvement to automatic answering and call forwarding features used in telephone communications which allows a user to remotely activate, modify, and deactivate these features. The improvement describes a transformerless means for coupling signals to ... | 06/30/1987 |
| 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 by way of a bilateral switch. Sensing circuitry is provide... | 02/03/1987 |
| 4629832 | Communication system administration method and circuitry The present administration arrangement disables any idle system apparatus which would be affected by the administration changes being made. In the station administration mode once the selected station is idle it is held in a forced idle state until admini... | 12/16/1986 |
| 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 isolation of the perpetrator. The system can be connected in... | 05/20/1986 |
