Patents
Patents for H04M 3 - Automatic or semi-automatic exchanges (99,881)
09/1995
09/20/1995EP0673141A2 Telecommunication terminal
09/20/1995EP0632910B1 Programme-controlled isdn switching system with a program module constructed in accordance with the principles of object-oriented programming for the handling of switched calls
09/20/1995EP0427760B1 Method and apparatus for accessing a facsimile store and forward network
09/20/1995CN1108870A Cabinet and position allocation
09/19/1995US5452353 Personal dialing apparatus
09/19/1995US5452351 Electronic private branch exchange having an LCR function and a method of accessing a particular common carrier in that exchange
09/19/1995US5452350 Subscriber call routing processing system
09/19/1995US5452349 Call forwarding control system for ISDN
09/19/1995US5452348 Automatic call distribution system with emergency conferencing and method
09/19/1995US5452347 Dual-line telephone bridging device that gives remote telephones access to communications features
09/19/1995US5452345 Metering signal level control circuit
09/19/1995US5452341 Integrated voice processing system
09/19/1995US5452339 Local/remote modification of electronically alterable operating system firmware resident in redundant flash memory of remote unit for testing/conditioning subscriber line circuits
09/19/1995US5452298 Digital conference trunk system
09/19/1995US5452289 Computer-based multifunction personal communications system
09/19/1995US5452286 Digital transmission apparatus for subscribers having switching function from active transmission line to protection transmission line
09/14/1995WO1995024803A1 Telecommunications switch with improved redundancy
09/14/1995WO1995024802A1 Bandwidth management in a switched telecommunications network
09/14/1995WO1995024791A1 Methods and apparatus for communicating data via a cellular network control channel
09/14/1995WO1995024788A2 Expandable telecommunications system
09/14/1995WO1995024714A1 Removable pointer device
09/14/1995WO1995022218A3 Private exchange for isdn
09/13/1995EP0671843A1 Communication apparatus for use with public telephone network
09/13/1995EP0671840A2 Method for recognizing spelled names or terms for communication exchanges
09/13/1995EP0671830A2 Secure communication apparatus and method
09/13/1995EP0671721A2 Communication system
09/13/1995EP0671098A1 Network termination unit
09/13/1995EP0671043A1 Telephone network voice recognition and verification using selectively-adjustable signal thresholds
09/13/1995CN1108463A Subscriber services arrangement for mobile telecommunications system providing pabxaccess
09/13/1995CN1108449A System and method to identify the terminating directory number at the customer premises
09/12/1995US5450569 Method for the visualization of logged information in a communication system
09/12/1995US5450524 For enrolling and recognizing user spoken passwords
09/12/1995US5450488 Multiple service voice messaging system
09/12/1995US5450487 Arrangement for the control of an echo canceller
09/12/1995US5450486 Telecommunication system and a linecard
09/12/1995US5450483 Method of controlling overloads in a telecommunications network
09/12/1995US5450482 Dynamic network automatic call distribution
09/12/1995US5450481 Conference call participation tracking
09/12/1995US5450480 Method of creating a telecommunication service specification
09/12/1995US5450476 Method and system for providing nonpublished number messaging service
09/12/1995US5450475 Method for controlling electronic telephone switches
09/12/1995US5450470 Script generator and process for programming automated TDD telephone system application
09/12/1995US5450469 Subscriber interface box
09/12/1995US5450468 Method of rapidly assessing damage to outside loop plant
09/12/1995US5450440 Monitor system for digital communication apparatus
09/12/1995US5450396 Communication system and a private branch exchange to be used in such a communication system
09/12/1995US5450123 Method to enhance voice communications using encoded one-way video signals under bi-directional user or network control for transmitting stored or real-time video or image information
09/12/1995CA2045027C Control and interface apparatus for telephone systems
09/10/1995CA2143997A1 Apparatus for detecting existence of a telephone line connection in a data access arrangement and method for same
09/08/1995WO1995024103A2 Accomplishing a register recall in a radio system
09/08/1995WO1995024092A1 Method and apparatus for reliable access to audio and facsimile message storage and retrieval system
09/08/1995WO1995024090A2 Tracing with keys and locks on a telecommunication network
09/08/1995CA2183059A1 Tracing with keys and locks on a telecommunication network
09/07/1995DE4406602A1 Security system for identification and authentication of communication partners
09/07/1995DE4406590A1 Caller authentication system for telecommunication networks e.g. in home banking, shopping
09/06/1995EP0670649A2 Group exchange port (GXP)
09/06/1995EP0670097A1 Method for establishing connection between communication devices
09/06/1995EP0670094A1 Telephone call handling system
09/05/1995US5448720 Information processing system for obtaining status data of a simplex system by a standby system of a duplex system
09/05/1995US5448663 Optical coupler
09/05/1995US5448633 Telecommunications system for controlling access to a destination
09/05/1995US5448632 Call monitoring system for intelligent call processing
09/05/1995US5448631 Apparatus for handling features in a telephone network
09/05/1995US5448627 Telephone apparatus with call forwarding arrangement
09/05/1995US5448626 Facsimile mail system having means for storing facsimile signals and telephone signals
09/05/1995US5448625 Telephone advertising method and apparatus
09/05/1995US5448624 Telephone network performance monitoring method and system
09/05/1995US5448618 Emergency mobilization system
09/05/1995US5448617 Method of processing intelligent network service call with DTMF subscriber signalling in electronic switching system for toll/tandem
09/05/1995US5448574 Detection system for abnormal cable connections in communication apparatuses
09/05/1995CA2055171C Telephone network credit card calling apparatus and method of operation
08/1995
08/31/1995WO1995023484A1 Method and apparatus for delivery of a response in a messaging system
08/31/1995WO1995023483A1 Service provision in communications networks
08/31/1995WO1995023478A1 A telephone communication system having a locator
08/31/1995WO1995023475A2 Call control in a telecommunication system
08/31/1995WO1995023473A2 Method to identify clients and method for using a teleterminal device
08/31/1995WO1995023455A1 Switching device for telecommunications channel
08/31/1995WO1995020855A3 Optimizing the capacity of a telecommunication system
08/31/1995DE4419040C1 Communication connection detection system for global satellite mobile communications network
08/31/1995CA2183642A1 Switching device for telecommunications channel
08/30/1995EP0669773A2 Communication system with personal computers and wireless telephone system connected to communication equipment
08/30/1995EP0669772A2 Connections between a toll network and multiple local networks
08/30/1995EP0669771A1 Message interceptor for a signalling network
08/30/1995EP0669764A1 Multipoint video teleconferencing apparatus and system using the same
08/30/1995EP0669749A1 Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system
08/30/1995EP0669748A2 Service delivery using broadband
08/30/1995EP0669747A2 Integratable circuit arrangement for disturbance resistant detection of the unhooked condition in telephone systems
08/30/1995EP0669744A2 Telephone line universal circuit
08/30/1995EP0669067A1 Establishing telecommunications call paths in broadband communication networks.
08/30/1995EP0669061A1 An apparatus and method for detecting potentially fraudulent telecommunication activity
08/30/1995EP0669054A1 Communications channel testing arrangement
08/30/1995EP0669031A1 Mobile telephone systems and a method for carrying out financial transactions by means of a mobile telephone system.
08/29/1995US5446786 Two-wire telecommunications line detection arrangements
08/29/1995US5446725 Method of changing over path switch in optical transmission device
08/29/1995CA2055803C Telephone line unit having programmable read-only memory
08/29/1995CA2055176C Message service control system
08/29/1995CA1336840C Automated interactive mass communications system
08/24/1995WO1995022874A1 Method and circuit arrangement for producing telecommunication connections
08/23/1995EP0668705A2 System for detecting the operation of a digital telecommunications network
08/23/1995EP0668687A1 An apparatus for generating a metering signal in a communication system