| 1 2 |
| Patent ID | Title | Date Filed |
| 5892819 | Call forward managed rerouting
| February 23, 1996 |
| 5889782 | Encapsulation of proprietary protocol information conforming to the ANSI SS7 ISUP standard
| May 28, 1996 |
| 5872782 | Encapsulation of proprietary protocol information conforming to the ITU-T recommendation Q.763 ISUP standard
| May 28, 1997 |
| 5867571 | Method and arrangement for establishing call connections in a telecommunications network using a virtual transport server
| February 23, 1996 |
| 5867498 | Intelligent telecommunications network
| April 8, 1997 |
| 5862129 | Apparatus and method for the detection and elimination of circular routed SS7 global title translated messages in a telecommunications network
| December 23, 1996 |
| 5859855 | Network emulator for private communication terminal equipment
| July 22, 1996 |
| 5850391 | Shared interworking function within a mobile telecommunications network
| October 17, 1996 |
| 5844896 | System and method for routing telephone calls
| February 26, 1997 |
| 5844895 | ATM communications network
| June 28, 1996 |
| 5818921 | Signaling system and method for enabling PBX-PBX feature transparency across a switched public network
| March 14, 1996 |
| 5805691 | System and method for safely and efficiently redirecting a telephone call
| May 28, 1996 |
| 5771275 | Use of ISDN to provide wireless office environment connection to the public land mobile network
| December 17, 1996 |
| 5768361 | Flexible enhanced signaling subsystem for a telecommunications switch
| December 29, 1995 |
| 5673312 | Control of call features provided to a subscriber by a hierarchical telecommunication switch
| July 26, 1996 |
| 5673262 | Communication network comprising transit switches without asynchronous transfer mode switching capability
| November 7, 1995 |
| 5671251 | Apparatus and method for a data communications device to selectively operate as an analog modem, as a digital modem, and as a terminal adapter
| February 28, 1995 |
| 5668860 | Call screening at a hierarchical switch based on organizational membership of the parties
| November 16, 1995 |
| 5655001 | Wireless telecommunication system using protocol conversion for signaling between base stations and land based switches
| October 3, 1994 |
| 5631953 | Circuit arrangement for integration of EDP systems in the utilization of telephone systems
| August 25, 1995 |
| 5629926 | Customer premise equipment interface
| March 31, 1995 |
| 5625685 | Network termination unit
| January 26, 1995 |
| 5621731 | Private exchange for ISDN
| February 4, 1994 |
| 5610977 | Number portability using ISUP message option
| December 27, 1995 |
| 5610976 | Dual channel ISDN terminal call identification and switching system
| April 25, 1995 |
| 5602909 | Number portability using database query
| December 27, 1995 |
| 5602840 | Program-controlled ISDN switching system with a program module constructed in accordance with the principles of object-oriented programming for the handling of switched connections
| September 26, 1994 |
| 5602837 | Multiplex system for a personal handy phone system
| April 8, 1996 |
| 5598402 | Multiplexer with transmission back-up function
| June 21, 1995 |
| 5598401 | Apparatus and method for a digital data communications device to operate in an analog mode
| March 21, 1995 |
| 5594730 | Data distribution system and methods for its use
| December 5, 1994 |
| 5579313 | Method of multiplexing speech signal and control signal in ISDN B-channels for an exchange system
| November 27, 1992 |
| 5579309 | Object oriented program-controlled broadband communication equipment for optimized method calls
| April 25, 1995 |
| 5579300 | Private automatic branch exchange for integrated services digital network
| May 2, 1995 |
| 5577115 | Customer premise equipment interface
| March 31, 1995 |
| 5572585 | Communication system and call processing method
| March 14, 1994 |
| 5572518 | Band management system in communication
| May 1, 1995 |
| 5566182 | ISDN system which processes disconnect message after call termination
| June 7, 1995 |
| 5563937 | Method and system for multi-channel data automatic call distribution
| March 9, 1995 |
| 5563930 | Common channeling signaling network maintenance and testing
| June 6, 1995 |
| 5555541 | Exchange connected to a control channel junction line
| September 8, 1993 |
| 5550906 | Telecommunications feature server
| August 5, 1994 |
| 1 2 |