Alcatel USA Sourcing, L.p.

Dsc Communications Corporation

Alcatel USA

Edward P Traupman

Stephen A Deschaine

Gary D Hanson

Steven Dale Sensel

Richard Schroder

E Lawrence Read

Ronald L Ward

Kevin W Hager

Dwight W Doss

Richard S Weldon, Jr

Gregory L Mayhan

Richard L Howe

Stephen R Mallinson

Werner L Heissenhuber

Manouchehr Entezari

Mark J Nietubyc

Clemente G Garcia

A telecommunications network (,) includes a public switched telephone network (,) and an Internet data network (,). The Internet data network (,) includes an Internet routing element (,) and a line access switch (,). The Internet routing element (,) is coupled to end office switches (,) and local switches (,) of the public switched telephone network (,) by modem trunks (,). The modem trunks (,) provide the Internet routing element (,) with Internet calls re-routed from the public switched telephone network (,) to prevent the Internet calls from congesting trunks (,) of the public switched telephone network (,). The Internet calls are received at an ATM multiplexer (,) within the Internet routing element (,). The ATM multiplexer (,) includes a pool of modems (,) that converts the analog signal on the modem trunks (,) into digital data. The ATM multiplexer (,) includes an ATM cell adaptation unit (,) that converts the digital data into ATM cells for transmission to an Internet Service Provider (,) over an ATM network (,). The ATM multiplexer (,) generates addressing information for the ATM cells through interworkings with signaling protocols of Internet calls. The line access switch includes a similar ATM multiplexer (,) to re-route Internet calls prior to entering the public switched telephone network (,).

Method and apparatus for routing internet calls

An Internet call routing system (,) includes a master controller (,) coupled to a signaling control network, and a call routing element (,) coupled to the master controller and a voice switched network (,). The call routing element receives calls destined for an information service provider (,) from the voice switched network as directed by the master controller. At least one modem bank (,) is coupled to the call routing element and master controller for converting the calls destined for the information service provider from a first format to a second format and then providing the converted calls to a packet data network. Additionally, the modem interface to the packet data network includes a controller (,) coupled to a master controller (,) for receiving control information therefrom. At least one modem (,) receives a call destined for an information service provider from a call routing element and converts the call from an analog format to a digital format. An adaptation unit (,) is coupled to the at least one modem for packing the digital call into a plurality of data packets. A network interface (,) is coupled to the adaptation unit for transporting the data packets to a packet data network.

System and method for routing Internet calls

A multi-host subscriber loop (,) includes N central office terminals (,) coupled to a local exchange (,), where one of the N central office terminals (,) is directly coupled to all other central office terminals (,). M remote terminals (,) are coupled to a plurality of telephone service subscribers. A single network facility (,) is coupled between the M remote terminals and N central office terminals. The single network facility concentrates subscriber traffic, control information and associated signaling onto one message structure (,). Messages in this message structure are transmitted between the remote terminals and central office terminals. The message structure includes a plurality of time slots, a first predetermined number of the time slots being allocated to N control channels, at least one time slot being allocated to associated signaling, and remaining time slots being allocated to subscriber traffic.

System and method for a multi-host subscriber loop

An integrated multiple cross-connect system (10) having remotely located components interconnected by integrated office links is provided. The system (10) includes a broadband matrix (20), at least one remotely located high speed line terminating equipment (30, 32) coupled to a telecommunications network, and an integrated office link (34, 36) interconnecting the broadband matrix (10) and high speed line terminating equipment (30, 32), the integrated office link (34, 36) carrying duplex transmission of an IOL-N signal of N multiplexed STS-1P optical signals at an OC-N rate, the STS-1P signal including data payload and overhead fields. Further included is a remotely located wideband matrix (22), a second integrated office link (40) interconnecting the broadband matrix (20) and the remotely located wideband matrix (22), and at least one remotely located low speed line terminating equipment (54) coupled to a telecommunications network, where the wideband matrix (22) and low speed line terminating equipment (54) are interconnected by a third integrated office link (59). Fault coverage information including a cross-connect channel identification code and a parity value are among the IOL overhead fields. The fault coverage information in the IOL overhead fields are monitored at selected points along a transmission path.

Integrated multi-fabric digital cross-connect integrated office links

An interface unit (12) for interfacing a digital loop carrier (16) to a digital cross-connect (14) comprises a control interface (22) coupled between the digital cross-connect (14) and digital loop carrier (16) for conversion and communication of control messages therebetween. A timing interface (32) is further coupled between the digital cross-connect (14) and digital loop carrier (16) for generally synchronizing the operations thereof. Further, a matrix interface (30) is coupled between the digital cross-connect (14) and digital loop carrier (16) for converting data rates and formats of data in the digital cross-connect (14) and digital loop carrier (16), so that network signals received by the digital loop carrier (16) are converted from a first format to a second format and communicated by the matrix interface (30) to the digital cross-connect (14) for cross-connection, and cross-connected data are converted from the second format to the first format and communicated to the digital loop carrier (16).

Digital cross-connect system to digital loop carrier interface unit

A multi-host subscriber loop (10, 70) includes N central office terminals (22-26, 78) coupled to a local exchange (20, 76), where one of the N central office terminals (22, 110) is directly coupled to all other central office terminals (24-26, 112-114). M remote terminals (40-46, 100-104) are coupled to a plurality of telephone service subscribers. A single network facility (16, 76) is coupled between the M remote terminals and N central office terminals. The single network facility concentrates subscriber traffic, control information and associated signaling onto one message structure (60, 140). Messages in this message structure are transmitted between the remote terminals and central office terminals. The message structure includes a plurality of time slots, a first predetermined number of the time slots being allocated to N control channels, at least one time slot being allocated to associated signaling, and remaining time slots being allocated to subscriber traffic.

An integrated multi-rate cross-connect system (10) includes a broadband subsystem (14) for processing optical and electrical telecommunication network signals. A wideband subsystem (16) processes wideband level electrical telecommunication signals from the network, from the broadband subsystem (14), and from a narrowband subsystem (18). The narrowband subsystem (18) processes narrowband level electrical telecommunication signals from the network and the wideband subsystem (16). An administration subsystem (12) provides centralized control and synchronization to the broadband subsystem (14), the wideband subsystem (16), and the narrowband subsystem (18). The wideband subsystem (16) is coupled to the broadband subsystem (14) and the narrowband subsystem (18) by internal transmission links (30) to allow for remote distribution of each subsystem. Each subsystem operates within its own timing island synchronized to a reference timing signal to facilitate component distribution.

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Fairview, TX, United States of America

Edward P Traupman