Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 3 - Automatic or semi-automatic exchanges
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
11/1999
11/09/1999CA2160894C Multimedia telecommunications network and service
11/09/1999CA2153859C Private communications network system and method of authentication for a mobile station used in private communications networks
11/09/1999CA2073921C Picture codec and teleconference terminal equipment
11/06/1999CA2270038A1 System and method for voice dialing
11/04/1999WO1999056478A1 An announcing system and method used in a communications network for holding incoming circuit switched calls
11/04/1999WO1999056477A1 Method and apparatus for preventing fraudulent use of a telephone
11/04/1999WO1999056452A1 Data communication apparatus
11/04/1999WO1999056451A1 Processing of data message in a network element of a communications network
11/04/1999WO1999056450A1 Methods and apparatus for providing information in response to telephonic requests
11/04/1999WO1999056447A1 Method and system for configuring an internet appliance
11/04/1999WO1999056415A1 Noise reduction techniques and apparatus for enhancing wireless data network telephony
11/04/1999WO1999056229A1 Method and apparatus for multiple agent commitment tracking and notification
11/04/1999WO1999048311A3 A method and system for routing a call between cellular subsystems
11/04/1999DE19819209A1 Anordnung zum Messen von Fremdspannungen auf Anschlußleitungen in einem Teilnehmeranschlußmodul Arrangement for measuring external voltages on leads in a subscriber line module
11/04/1999DE19818513A1 Connection set up method for ISDN terminal
11/04/1999CA2330593A1 An announcing system and method used in a communications network for holding incoming circuit switched calls
11/04/1999CA2330001A1 Noise reduction techniques and apparatus for enhancing wireless data network telephony
11/04/1999CA2329999A1 Method and apparatus for multiple agent commitment tracking and notification
11/04/1999CA2294532A1 Data communication apparatus
11/03/1999EP0954193A2 Apparatus and method for calendar based call routing
11/03/1999EP0954188A2 Final digit detection of a telephone number
11/03/1999EP0954158A2 Data optimized codec
11/03/1999EP0954156A2 Conference call
11/03/1999EP0954155A2 Multimedia automatic call distribution system
11/03/1999EP0954154A2 Sharing of voice-switched network and internet resources for intelligent session processing
11/03/1999EP0954153A2 Method and system for transferring digital data calls between different destinations
11/03/1999EP0954152A2 Arrangement for measuring external voltages on connection lines in a subscriber connection module
11/03/1999EP0954148A1 Internet subscriber profile
11/03/1999EP0954147A2 Centralized service management system for two-way interactive communication devices in data networks
11/03/1999EP0953972A2 Simultaneous speaker-independent voice recognition and verification over a telephone network
11/03/1999EP0953967A2 An automated hotel attendant using speech recognition
11/03/1999EP0953951A2 Radio paging receiver with an error indicating function
11/03/1999EP0953262A1 Method and apparatus for offering subscribers access to unused communications capacity in a cellular communications system
11/03/1999EP0953260A2 Establishing emergency calls within a mobile telecommunications network
11/03/1999EP0953258A1 Intelligent network with distributed service control function
11/03/1999EP0953251A2 Method and device for detecting a ringtrip
11/03/1999EP0953250A1 Telephone exchange
11/03/1999EP0953249A1 Telephone callback detector
11/03/1999EP0953240A1 Telecommunications system
11/03/1999EP0835596B1 Method of specifying multifunctional subassemblies in a communication system
11/03/1999EP0823187B1 Monitoring method and monitoring system
11/03/1999EP0784896B1 Protection of active telephone line interface circuits
11/03/1999EP0740880B1 A method for off-hook detection during ringing and a subscriber line interface circuit for off-hook detection during ringing
11/03/1999EP0698328A4 Multimedia communications network
11/03/1999EP0695488A4 Multimedia telecommunications network and service
11/03/1999EP0691061A4 Method and system for managing telecommunications such as telephone calls
11/03/1999CN1234168A Providing service area dependent subscriber data within mobile telecommunications network
11/03/1999CN1234165A Providing caller ID within mobile telecommunications network
11/03/1999CN1233905A Telephony system formed by base station and at least subscriber device, comprising callback system, method of establishing callbacks
11/03/1999CN1233904A Method for controlling connection after calling using password for telephone exchange
11/03/1999CN1233897A Centralized service management system for two-way interactive communication devices in data networks
11/02/1999US5978837 Intelligent pager for remotely managing E-Mail messages
11/02/1999US5978835 Multimedia mail, conference recording and documents in video conferencing
11/02/1999US5978806 Method and apparatus for communicating information about a called party to a calling party
11/02/1999US5978783 Feedback control system for telecommunications systems
11/02/1999US5978757 Post storage message compaction
11/02/1999US5978677 Migration of routing number selection to the base station controller of a cellular telephone network
11/02/1999US5978673 Providing location-based call forwarding within a mobile telecommunications network
11/02/1999US5978672 Mobility extended telephone application programming interface and method of use
11/02/1999US5978671 Method for updating a caller database in a communication system
11/02/1999US5978667 Electronic exchange system for portable stations
11/02/1999US5978471 Method and device for detecting a ringtrip
11/02/1999US5978470 Signal-processing method and system for off-hook notification
11/02/1999US5978469 Apparatus for telephone extension control
11/02/1999US5978467 Method and apparatus for enabling interaction between callers with calls positioned in a queue
11/02/1999US5978465 Method and apparatus for allocating resources in a call center
11/02/1999US5978464 Method for updating a local switch internal database in system having different service providers within a common numbering plan area
11/02/1999US5978463 Reservation scheduling system for audio conferencing resources
11/02/1999US5978462 Method and system for automating updates to subscriber service accounts to accommodate numbering plan area splits
11/02/1999US5978459 Encryption of telephone calling card codes
11/02/1999US5978450 Personal dial tone
11/02/1999US5978449 Qualifying telephone line for digital transmission service
11/02/1999US5978380 Apparatus for establishing common signal channel
11/02/1999US5978373 Wide area network system providing secure transmission
11/02/1999US5978359 Allocated and dynamic switch flow control
11/02/1999US5978358 Method for determining network switch capacity
11/02/1999CA2179498C A network-based telephone system having interactive capabilities
11/02/1999CA2173300C Multi-media conference call control providing adjustable bandwidth for individual communication terminals
11/02/1999CA2173017C Selective participation in a multi-media communication conference call
11/02/1999CA2155058C Method and system for updating replicated databases in foreign and home telecommunication network systems for supporting global mobility of network customers
11/02/1999CA2141727C Conference bridge for packetized speech-signal networks
11/02/1999CA2137592C Connections between a toll network and multiple local networks
10/1999
10/28/1999WO1999055111A2 Procedure and system for indicating a call in hold state in a telecommunication system
10/28/1999WO1999055101A1 Method in a telephone service for implementing queuing according to a desired charge
10/28/1999WO1999055097A1 Implementing services of an intelligent network by using a data network
10/28/1999WO1999055068A1 Connection management servicing method for communication channel
10/28/1999WO1999055067A1 Method for submitting user profiles to a telecommunications network
10/28/1999WO1999055066A1 Telephone call management software and internet marketing method
10/28/1999WO1999055063A1 A method and system for call tracing
10/28/1999WO1999055062A1 Method and system for intercepting and monitoring signals in a network
10/28/1999WO1999055061A1 Call processing system, method and computer program product
10/28/1999WO1999055058A1 Personalized information system
10/28/1999WO1999055022A1 Reconnection of dropped call in mobile communication system
10/28/1999WO1999054822A1 Computer network
10/28/1999WO1999040685A3 Method for processing telephone signals delivered by an analog telephone terminal
10/28/1999WO1999025071A3 Distributed service network
10/28/1999WO1999018711A9 Virtual end office in a switched telephone network
10/28/1999DE19818006A1 Periphery apparatus for interactive message exchange in intelligent network
10/28/1999DE19817981A1 Public telephone for internet-based shopping and information booth
10/28/1999CA2328913A1 Telephone call management software and internet marketing method
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