| 1 |
| Patent ID | Title | Date Filed |
| 7200396 | Managing group voice communication in telecommunications system
| July 6, 2004 |
| 7185109 | Recursive discovery of CDP type of nodes in a network of various node types
| April 20, 2001 |
| 7058026 | Internet teleconferencing
| October 6, 2000 |
| 6948013 | Apparatus and method for configuring data cells
| September 9, 2003 |
| 6944137 | Method and apparatus for a talkgroup call in a wireless communication system
| March 24, 2000 |
| 6850496 | Virtual conference room for voice conferencing
| June 9, 2000 |
| 6847618 | Method and system for distributed conference bridge processing
| August 16, 2001 |
| 6748428 | Device operation management method, a manager device, a program supply medium for supplying a device operation management program, an controller device, and an electronic device
| December 3, 1999 |
| 6731610 | Data communication system and apparatus
| March 23, 1998 |
| 6662211 | Method and system for providing conferencing services in a telecommunications system
| April 7, 2000 |
| 6654455 | IP conference telephone system compatible with IP-PBX systems
| March 28, 2000 |
| 6546007 | Time-slot interchanger that controls both time-slot access and signal-processing features
| March 31, 1999 |
| 6418125 | Unified mixing, speaker selection, and jitter buffer management for multi-speaker packet audio systems
| June 18, 1998 |
| 6275474 | Private digital communication apparatus for interconnecting a plurality of elements
| January 17, 1997 |
| 6205124 | Multipoint digital simultaneous voice and data system
| December 31, 1996 |
| 6199136 | Method and apparatus for a low data-rate network to be represented on and controllable by high data-rate home audio/video interoperability (HAVi) network
| September 2, 1998 |
| 6115388 | Establishment of multiple low-rate inbound signaling links in CDMA dispatch system
| October 28, 1997 |
| 6091714 | Programmable distributed digital switch system
| April 30, 1997 |
| 6069878 | TDM digital matrix intercom system
| December 19, 1996 |
| 6005848 | Method and apparatus for a talkgroup call in a wireless CDMA system
| October 27, 1997 |
| 5898676 | Method, communication system and conference unit for carrying out conferences
| July 19, 1996 |
| 5889843 | Methods and systems for creating a spatial auditory environment in an audio conference system
| March 4, 1996 |
| 5801756 | Multipoint video conference system
| November 27, 1995 |
| 5774567 | Audio codec with digital level adjustment and flexible channel assignment
| April 11, 1995 |
| 5734724 | Audio communication control unit
| February 28, 1996 |
| 5463617 | Method for providing caller interrupt in a time division multiplexed wireless communication system
| September 30, 1994 |
| 5384772 | Method and apparatus for audio flow control during teleconferencing
| September 1, 1993 |
| 4829513 | Time slot summation communication system for allowing conference calls
| March 19, 1987 |
| 4716585 | Gain switched audio conferencing network
| April 5, 1985 |
| 4570258 | Exchange switch
| February 13, 1984 |
| 4507781 | Time domain multiple access broadcasting, multipoint, and conferencing communication apparatus and method
| September 16, 1983 |
| 4486879 | Method and apparatus for mixing low-frequency signals transmitted via different time slots towards the same telephone receiver set
| January 18, 1982 |
| 4360910 | Digital voice conferencing apparatus in time division multiplex systems
| July 23, 1980 |
| 4325139 | Circuit for combining delta modulated signals
| August 28, 1980 |
| 4230908 | Telephone summing circuit
| January 22, 1979 |
| 4160878 | Conference circuit with digital-analog and analog-digital conversion
| July 19, 1978 |
| 4049920 | Analog signal summing conference circuit
| October 18, 1976 |
| 4024349 | Quasi-resonant transfer conferencing circuit
| April 22, 1976 |
| 3970797 | Digital conference bridge
| January 13, 1975 |
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