Alcatel USA Sourcing, L.p.

Dsc Communications Corporation

Alcatel USA

Dsc Telecom L.p.

Cisco Technology, Inc.

Stephen A Deschaine

Edward P Traupman

Manouchehr Entezari

Steven Dale Sensel

Richard Schroder

E Lawrence Read

Werner L Heissenhuber

Mark J Nietubyc

Gary D Hanson

Michael H Jette

Ronald L Ward

Kevin W Hager

Dwight W Doss

Richard S Weldon, Jr

Edgar L Read

Rudolph B Klecka

Amanda G Noe

Michael J Hanlon

Mark C Cromwell

Dennis K Smith

Gregory S Lovelace

Sharlene C Lin

Daniel P Lyon

Richard L Howe

Becky J Sampson

William A Moffit

Stephen R Mallinson

Ralph H Carmen

Michael K Corry

Govind Shah

Mark W Berry

Clemente G Garcia

Michael Flohr

Richard J Briggs, Jr

Peter A Basile

Mark A McDonald

Henry K Lee

Marcus C Mertsching

Communicating a call from an analog device is disclosed. An analog interface receives analog signals from an analog device, and a receiver receives audio signals. A controller converts the analog signals to first data packets, requests a first communication link according to a voice over packet protocol, and communicates the first data packets across the first communication link according to the voice over packet protocol. The controller converts the audio signals to a plurality of second data packets, requests a second communication link according to the voice over packet protocol, and communicates the second data packets across the second communication link according to the voice over packet protocol.

Communicating calls from analog devices using voice over packet technology

A distributed digital cross-connect system () is provided. The system includes two or more network interface islands () that connect to the telecommunications network. The system () also includes one or more distributed services nodes (). Each distributed services node () connects to two or more of the network interface islands (). The network interface islands () can transmit data to each other through the distributed services node (). An administration system () is also connected to each distributed services node () and each network interface island (). The administration system () transmits matrix configuration and telecommunications channel routing data to the network interface islands () and the distributed services nodes ().

Distributed digital cross-connect system and method

A redundancy system for a telecommunications system is provided. The redundancy system includes one or more resources, such as circuit cards containing circuits that process data for telecommunications channels. A controller bus is used to connect a controller to the resources. Another controller bus is also used to connect another controller to the resources. The resources are each coupled to the controller bus and the other controller bus, such that a change in control between the controller and the other controller may be accomplished by transferring data for the resources from the controller bus to the other controller bus.

System and method for providing redundancy in a telecommunications system

A system for providing wireless telecommunications access is presented. The system includes a wireline assembly that provides access to a telecommunications system for one or more wireline subscribers. The system also includes a wireless assembly that provides access to a telecommunications system for one or more wireless subscribers. A common control and switching system is connected to the wireline assembly, the wireless assembly, and a switched network. The common control and switching assembly establishes telecommunications channels between the wireline assembly, the wireless assembly, and the switched network, and controls the telecommunications channels.

Wireless telecommunications access system

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

A distributed digital cross-connect system (,) is provided. The system includes two or more network interface islands (,) that connect to the telecommunications network. The system (,) also includes one or more distributed services nodes (,). Each distributed services node (,) connects to two or more of the network interface islands (,). The network interface islands (,) can transmit data to each other through the distributed services node (,). An administration system (,) is also connected to each distributed services node (,) and each network interface island (,). The administration system (,) transmits matrix configuration and telecommunications channel routing data to the network interface islands (,) and the distributed services nodes (,).

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

Apparatus for redundancy circuit protection includes a controller (20), a plurality of circuits (22) coupled to the controller (20), and a redundancy switch (50) coupled between the plurality of circuits (22) and a network. The redundancy switch (50) is adapted for connecting or disconnecting selected ones of the plurality of circuits (22) to or from the network. In addition, a predetermined number of spare circuits (52) with similar functionality as the plurality of circuits (22) are coupled to the high density bank control unit (20), so that the redundancy switch (50) may connect or disconnect selected ones of the predetermined number of spare circuits (52) to the network and establish a transmission path from the controller (20) through the selected spare circuits (52) to the network.

Apparatus and method for circuit protection

Apparatus and method are provided which map E1 signals into a logical space of a predetermined number of DS1 signals. 24 selected DS0 signals that are part of each E1 signal are mapped into the space of one DS1 signal in the logical space. The remaining eight DS0 signals of every three E1 signal are then interleavingly mapped into the space of one DS1 signal in the logical space. Depending on the defined logical space, additional E1 signals are mapped into the logical space in the same manner until the predetermined number of DS1 signal spaces in the defined logical space are filled.

Apparatus and method for mapping high density E1 signals into a digital

Apparatus and method are provided which map E1 signals into a logical space of a predetermined number of DS1 signals. 24 selected DS0 signals that are part of the first E1 signal are mapped into the space of a first DS1 signal in the logical space. The 8 DS0 signals of the first E1 signal are then mapped into the space of a second DS1 signal in the logical space. Depending on the defined logical space, additional E1 signals may be mapped into the logical space of two DS1 signals in the same manner until the predetermined number of DS1 signal spaces in the defined logical space are filled.

Apparatus and method for mapping E1 signals into a digital cross-connect

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.

Two T1 signals are mapped onto a subscriber bus (26) in a subscriber loop equipment (10) for transport between a bank control unit (20) and channel units (22), for example. The data channels and the signaling and control channels of the first T1 signal are mapped onto a first data stream, and the data channels and the signaling and control channels of the second T1 signal are mapped onto a second data stream. The data streams are bit-interleaved for transport on the subscriber bus (26).

Apparatus and method for mapping telecommunications signals onto a

In the inbound direction, a tributary processor (32) includes an SPE encoder/decoder for extracting a synchronous payload envelope (SPE) from an STS-1P signal. A path terminator (62) may extract DS3 signals or a matrix payload envelope (MPE) from the STS-1P SPE. A DS1/DS3 extractor (68) generates DS1 signals from either the DS3 or MPE signals. An MPE mapper (70) creates MPE signals from the DS1 signals. A wideband stage interface (74) converts the MPE signals into matrix transport format (MTF) signals for cross-connection in a wideband center stage matrix (22). In the outbound direction, the wideband stage interface (74) receives MTF signals from the wideband center stage matrix (22) and generates MPE signals therefrom. The MPE signals are sent through the MPE mapper (70) in order to extract DS1 signals. The DS1 signals are converted to DS3 signals or another MPE mapping by the DS1/DS3 extractor (68). The path terminator receives DS3 or MPE signals for conversion into an STS-1P SPE. The SPE encoder/decoder creates the STS-1P signals from the STS-1P SPE for transmission to the appropriate interfaced subsystem or network.

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Garland, TX, United States of America

Stephen A Deschaine