1
Thomas J Baumgartner, Yeou H Hwang, Edith H Jones, Wu Hon F Leung, Lara F Morgan, Shi Chuan Tu: Multiple call control method in a multimedia conferencing system. AT&T Bell Laboratories, R T Watland, M B Johannesen, March 16, 1993: US05195086 (321 worldwide citation)

A method for use in a multimedia conferencing arrangement to control multiple concurrent calls where each call comprises one or more channels. A first call among a first set of user stations and a second call among a second set of user stations are merged into a single call comprising a plurality of ...


2
Robert C Lee, James M Leighton, Gerard P O Reilly, Donald E Smith: Method and apparatus for providing real-time switching of high bandwidth transmission channels. AT&T Bell Laboratories, R T Watland, P Visserman, August 20, 1991: US05042062 (102 worldwide citation)

Broadband terminals, such as video terminals and a video conferencing system, are directly connected to broadband digital access crossconnect systems and connections between the terminals are established via the crossconnects and DS1 or DS3 interconnecting links under control of telephone exchanges ...


3
James R Blakley: Call announcement arrangement. AT&T Bell Laboratories, R T Watland, April 9, 1991: US05007076 (95 worldwide citation)

An improved call waiting feature implementation for use with conventional analog station sets. When a called station is busy, a call waiting signal is transmitted to the called station. If the called station flashes, a communication path betwaeen the previous caller and the called station is disconn ...


4
David L Thomson: Harmonic speech coding arrangement where a set of parameters for a continuous magnitude spectrum is determined by a speech analyzer and the parameters are used by a synthesizer to determine a spectrum which is used to determine senusoids for synthesis. AT&T Bell Laboratories, R T Watland, M B Johannesen, January 12, 1993: US05179626 (67 worldwide citation)

A harmonic coding arrangement where the magnitude spectrum of the input speech is modeled at the analyzer by a relatively small set of parameters and, significantly, as a continuous rather than only a line magnitude spectrum. The synthesizer, rather than the analyzer, determines the magnitude, frequ ...


5
Wayne A Davidson, Sahadat Hossain: Telephone agent management information system. AT&T Bell Laboratories, R T Watland, January 29, 1991: US04988209 (63 worldwide citation)

A computer connected to an ISDN switch via an ISDN digital subscriber line, provides management information regarding activities of a plurality of telephone agents. The computer has shared call appearances with a number of telephone agent stations and receives shared call appearance associated messa ...


6
Raymond W Bennett, Joseph G Klinger: Telephone system with monitor on hold feature. AT&T Bell Laboratories, R T Watland, M B Johannesen, March 16, 1993: US05195087 (61 worldwide citation)

An arrangement providing a monitor-on-hold feature for telephone station apparatus. The exemplary apparatus includes a handset transmitter and receiver, a speaker, and four user control buttons. A user is given the capability to move a connection for a first call from the handset to the speaker by s ...


7
James M Johnson Jr, Ronald A Spanke: Arrangements for switching multiple packet types combined in a single packet stream. AT&T Bell Laboratories, R T Watland, K H Samples, M B Johannesen, May 19, 1992: US05115427 (57 worldwide citation)

An arrangement for switching broadband ISDN (B-ISDN) packets is disclosed. The arrangement comprises a broadband packet switch connected to B-ISDN customers and to a narrowband switch via an interface unit. B-ISDN control packets are connected by the broadband packet switch to the narrowband switch ...


8
Rolfe E Buhrke, Robert B Dianda, Leo R Katzenstein, Michael B McClurkan, John S Tsai: Call service initialization arrangement. AT&T Bell Laboratories, R T Watland, April 30, 1991: US05012466 (55 worldwide citation)

An initialization arrangement is disclosed that allows call services defined in service profiles stored in a switching system to be enabled for individual terminals in a multipoint configuration without requiring assignment of terminal endpoint identifiers or virtual channel identifiers at subscript ...


9
Steven L Greenspan, Joel M Marks, Timothy J Scale: Arrangement for intentionally blocking telephone calls to predefined destination numbers but allowing such blocking to be selectively overridden. AT&T Bell Laboratories, R T Watland, April 28, 1992: US05109408 (54 worldwide citation)

A call processing embodiment where customers are offered, in addition to the conventional office dialing plan, a special dialing plan where received numbers are processed such that a query of a database is defined when a prespecified access code, e.g., *66, is received, for example followed by a des ...


10
Kari T Teraslinna, Wing N Toy: Packet switching network for multiple packet types. AT&T Bell Laboratories, R T Watland, K H Samples, F W Padden, March 19, 1991: US05001702 (35 worldwide citation)

A packet switching arrangement for receiving packets including broadcast addresses and connecting representations of the received packets to any combination of output ports specified in the address is disclosed. The packet routing units of the network both generate packet representations and selecti ...