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| Number | Title | Issue Date |
| 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 |
| 7224788 | Method and device for generating voice/text/image commercial information ringback tone during communication wait Voice/text/image commercial information generating method and device during a communication is on wait. The method includes the steps of: checking a telephone call, connecting with a commercial information ringback tone generating system/device at an originating or ... | 05/29/2007 |
| 7190776 | System and method for selecting a feature A system and method in which a feature is selected for a busy terminal from a calling terminal. This results in a method with an improved selection of features that is specifically more user-friendly than other current methods. ... | 03/13/2007 |
| 7120236 | Mnemonic discovery and notification method, product, and apparatus When any user request other than that of a phone number subscription request is received from a user, it may be determined whether a subscription request is offered to the user in response to the received request. When an offer is to be provided, a phone number subs... | 10/10/2006 |
| 7110515 | Remembrance-promoted number receipt for call allowance A user is allowed to place a call to a target phone number upon receipt of one or more remembrance-promoted numbers and zero or more passwords, from the user, at an access phone number location. The one or more remembrance-promoted numbers comprise one or more of: a... | 09/19/2006 |
| 7092501 | Method and apparatus for providing prepaid local telephone services A system and method for providing prepaid dialtone services. The system includes a prepaid dialtone service center having an applications server that maintains a prepaid dialtone subscriber database including subscriber identification and service period information.... | 08/15/2006 |
| 7062026 | Telephone apparatus and start control method An alert control method in telephone equipment allowing communication with a certain person to be ensured is disclosed. A last-communication time of day related to a name of a person to communicate with is stored in a phonebook database. It is determined whether a p... | 06/13/2006 |
| 7046781 | Adaptive feature behavior The present invention provides a system, implemented within a private branch exchange (PBX) telephone system, which cancels or modifies a PBX feature for a telecommunication endpoint, based on activity associated with the telecommunication endpoint. The system compr... | 05/16/2006 |
| 6834101 | Ain based call retry and enhanced call waiting services AIN Monitor_For_Change functionality is used to implement an AIN based call retry service and an AIN based enhanced call waiting service. The AIN Monitor_For_Change functionality allows a service control point to obtain line status information, from a telephone swit... | 12/21/2004 |
| 6807253 | Switching apparatus having function for processing malicious call and operating method of the same A switching apparatus and method are disclosed. The method involves establishing, in response to a call from a caller, a communication path between the caller and a called party, selectively tracing only a CID of the caller, or the CID of the caller while wiretappin... | 10/19/2004 |
| 6795540 | Premised based 3-way call detection device Disclosure of the invention encompasses the activation, validation and continued verification of an electronic device installed on a common telephone line usually at a residence, to prohibit a three-way call event from being performed by the local telephone after th... | 09/21/2004 |
| 6526140 | Consolidated voice activity detection and noise estimation Methods and apparatus for processing at least one voice signal in which a centralized voice processing unit controls operation of a plurality of voice processing block. In a first embodiment, the centralized voice processing unit comprises a centralized v... | 02/25/2003 |
| 6519334 | Method for processing incoming call in exchange system An exchange system minimizing ring noises generated when processing an incoming call. Upon receipt of an incoming call from a central office line, the exchange system generates a ring to a called extension telephone to which the incoming call is terminate... | 02/11/2003 |
| 6393117 | Telephoning method comprising novel subscriber service A telephoning method, intended to facilitate possibility to offer subscribers of a telephone network/telecommunication system a novel service for preferably incoming calls/communication. According to the invention, a subscriber can, preferably by means of... | 05/21/2002 |
| 6307929 | Apparatus, method and system for providing conditional answering in multiple leg telecommunication sessions An apparatus, method and system provide for conditional answering in multiple leg telecommunication sessions, such as in a flexible alerting service. The preferred system includes a home location register (HLR) coupled to a mobile switching center (MSC). ... | 10/23/2001 |
| 5802160 | Multi-ring telephone method and system A method and system of providing telephone service comprises associating a list of telephone numbers with a representative telephone number. A call to the representative telephone number is detected and a plurality of telephone numbers on the list are sim... | 09/01/1998 |
| 5761289 | 800 number callback A method and system for handling incoming calls when no destination stations are available. When an incoming call from an originating station is received, it is determined whether a destination station is available. If a destination station is not availab... | 06/02/1998 |
| 5661788 | Method and system for selectively alerting user and answering preferred telephone calls A method and telephone system for selectively answering incoming telephone calls by enabling user selection of a receiving mode that designates telephone numbers and an alert mode that designates how the user will be notified of incoming calls from the de... | 08/26/1997 |
| 5600704 | Systems and methods for prioritized routing of telephone calls to a subscriber A cellular radio communications system maintains a prioritized routing list of several telephone numbers associated with a predetermined subscriber for efficiently establishing a communications link between a calling party and the subscriber. The telephon... | 02/04/1997 |
| 5598464 | Method and apparatus for providing local number portability A system (10) includes a calling party (12) that initiates a call to a ported customer (14). Upon receiving the call from calling party (12), switch (16) generates a trigger indicating that ported customer (14) is now being serviced by another switch (20)... | 01/28/1997 |
| 5586169 | Method of ringing a call responsive apparatus which answered an immediately preceding incoming call A method of connecting an incoming call to one of a plurality of call responsive apparatus all of which are associated with a single directory number, comprised of determining which one of the call responsive apparatus answered an immediately preceding ca... | 12/17/1996 |
| 5579383 | Calling terminal controlled call coverage A system that allows a calling party to quickly select a call coverage system to be utilized if a call is unanswered. The calling party can preselect the call coverage before the call is placed, and the called telephone terminal automatically transfers th... | 11/26/1996 |
| 5553128 | Control of call forwarding by a target telephone A telephone set and method for controlling what calls are forwarded to the telephone set. The telephone set has a terminal processor having an internal memory in which are stored a control program and data. The terminal processor under control of the prog... | 09/03/1996 |
| 5481602 | Method and apparatus for alternate destination routing for switching egress customers Redirection of calls from a busy primary destination to a secondary destination of a switched egress alternate destination redirection (ADR) customer is performed in the absence of sufficient terminating line status information in the form of either a bus... | 01/02/1996 |
| 5438616 | Method and apparatus for storing telephone numbers and for automatically calling the stored numbers Techniques for establishing a connection with a calling party and a called party using the processing of an intermediary serving arrangement so as to minimize telephone costs and preserve privacy. During a first established telephony connection, the inter... | 08/01/1995 |
| 5394464 | Progressive automatic activation and automatic resetting of call coverage An automatically progressively-activated and reset "send-all-calls" (SAC) feature provides the following functionality. In response to receipt at a switching system of each call for a destination subscriber station that has the feature enabled, the system... | 02/28/1995 |
| 5369695 | Method of redirecting a telephone call to an alternate destination A facility is provided for redirecting a call from one destination point in a communications network to another destination point in the event that the call is not answered within a predetermined period of time, or in the event that after the call has bee... | 11/29/1994 |
| 5208849 | Method of and apparatus for private telephone automatic locating and answering A method of and an apparatus for private telephone automatic locating and answering. By installing at a receiver's location, an apparatus for automatic telephone locating and answering, the receiver not only can talk to the caller using a telephone set pr... | 05/04/1993 |
| 5151929 | Computer-controlled radio-paging and telephone communication using recorded voice messages A method of and apparatus for notifying a remote subscriber of a caller's attempted communication by a communication system accepting and recognizing a call for a subscriber, paging the subscriber, and connecting the original caller to the subscriber's te... | 09/29/1992 |
| 4937857 | Plural terminals communication controlling system A plurality of communication terminals are coupled to one telephone line via a plural terminals communication controlling system having circuits for detecting on-hook/off-hook of the communication terminals and a time supervising circuit. In the case wher... | 06/26/1990 |
| 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 |
| 4436963 | Implied principal addressing in a call coverage arrangement An arrangement in a telephone system providing for the handling of calls which have been automatically redirected to a call covering station in a customer premises telephone system. The covering station is equipped with one or more function buttons each f... | 03/13/1984 |
| 4436962 | Call coverage arrangement A call coverage arrangement in a telephone system. Any station served by the system may be assigned to a call coverage group as a principal station. A coverage group includes the identities of a plurality of call covering stations for the principal statio... | 03/13/1984 |
| 4413158 | Automatic call forwarding telephone apparatus Telephone apparatus for installation at a subscriber station to enable call forward operation as used in combination with the standard subscriber facilities. The unit includes ring detection and call forward programming circuitry. The call forward program... | 11/01/1983 |
