At+t Corp.

Ram S Ramamurthy

Sanjay Agraharam

Peter H Stuntebeck

Ashok K Kuthyar

David Hilton Shur

Robert Edward Markowitz

Radhika R Roy

Sandeep Sibal

Antonio DeSimone

Roy Philip Weber

Kenneth H Rosen

Chia-Chang Li

Joseph Golan

Robert F Mortenson

Bryant Richard Parent

Lee Begeja

Marian Rogers Croak

Barin Geoffry Haskell

Murali Aravamudan

Joseph Thomas O'Neil

Mehmet Reha Civanlar

Aleksandr Zelezniak

Carroll W Creswell

Howard Paul Katseff

Bethany Scott Robinson

Richard Frank Bruno

James Robert Ensor

Sudhir Raman Ahuja

Glenn Lawrence Cash

Tom Evslin

Steven Howard Nurenberg

Carlos Alberto Perea

Michael B Jones

Edward Hope

Mon-Mei Chen

Richard T Roca

Ping Benjamin Hu

Stephen M Gurey

Prasad Balagopalan

Michael W Hodic

Linda D Galasso

A system and method allow an Internet user to act as a broadcast session conductor by assembling audiovisual information in a multimedia document, and broadcasting that information to a predetermined group for simultaneous viewing. During the network broadcast, members of the predetermined group can interact with the Internet conductor using a standard telephone or other audio connection. The broadcast information may be used for such sessions as on-line training/teaching seminars, telemarketing, teleshopping and other multimedia events.

Network communications system and method for worldwide web broadcasting

Enhanced performance of a WAN is achieved by allowing devices to move from LAN to LAN and have the move be transparent to end user applications. This is accomplished by allowing devices to move, with no action being taken in response to a move. Instead, notice is taken of the LANE Emulation Client (LEC) address at which a device can be reached when the device that moved chooses to communicate with some other device. In such a device initiates communication, a table is updated in a LAN Emulation Server (LES), which is an entity maintained by the WAN that interconnects a number of LECs. A similar table is maintained in each LEC, and the table of each LEC is updated whenever a connection is made between one of its devices and some other device. At times, of course, a LEC would have an incorrect address of a sought destination device. In such a case, the LEC sends a query to the LES, and the LES provides what the LES believes to be the correct LEC address. When the LES cannot resolve an address, a message is broadcast to the LES entities of other &ldquo;emulated LANs,&rdquo; or ELANs, which contains their own LES entities, and those LES entities have an opportunity to provide the correct address.

Mobile MAC protocol for LAN-coupled devices interconnected by an ATM wide area network

A mobility support technique provides home agents and foreign agents in mobility aware access networks. Participating mobile hosts are assigned a home address that is used by other hosts as the mobile host's address. The home address actually addresses the home agent provided in the mobility aware access network. The home address provides additional privacy to the mobile host because it does not identify the mobile host's home premises network where the mobile host resides permanently absent any mobility of the mobile host. By providing home agents and foreign agents in a mobility aware access network, the agents may cooperatively establish optimal routing paths for data transmitted to a mobile host. The agents may identify a pseudo home agent, an agent in a mobility aware access network located near to a transmitting mobile host, that acts as the home agent of a destination mobile host. The pseudo home agent tunnels data directly to the destination mobile host without requiring the data to be routed first to the true home agent. In this regard, the pseudo home agent establishes a more direct routing path between the transmitting and destination mobile hosts.

Mobility support services using mobility aware access networks

Network broadcasting system for broadcasting audiovisual information to an identified audience

An action control point master gatekeeper for a communications network creates a hierarchical scalable signaling and transaction infrastructure for supporting carrier level deployment of, for example, IP telephony using H.323 terminals and gateways. The action control point master gatekeeper supports a plurality of H.323 zones in an administrative domain. Action control point master gatekeepers in an administrative domain can signal to other administrative domains via a hierarchical signaling infrastructure. A backup master gatekeeper can also be present in an action control point. A customer database, which can be distributed within zones or centralized within an administrative domain, allows for address resolution between a terminal alias and a terminal address. The customer database can also contain pointers to special purpose processes, such as network control points, to implement service specific transaction services.

Method and system to provide an action control point master gatekeeper

When a calling party calls a called party on the public-switched telephone network (PSTN), a database common to both the PSTN and an Internet Protocol (IP) network, is accessed to determine whether the called telephone line is currently active on the IP network. That database maintains a record for each user who is currently active on the IP network through an Internet Service Provider (ISP). In addition, each record contains information identifying the particular user logged into the network on that line, an indication whether the telephone line is IP telephony capable, an indication whether that line is currently active on an IP telephony call on an Internet Telephony network (ITN), and the IP telephony feature set subscribed to by the called party on that line. If the telephone line is active, IP telephony capable, currently active on an IP telephony call on the ITN, and the called party subscribes to a call waiting-on-IP feature, then the incoming call can be forwarded as an IP telephony call to the called telephone line over the ITN. Alternatively, the incoming call can be directed to an alternate destination on either the ITN network or the PSTN, such as a voice mail or message service. If the called party is engaged in a browsing activity and has an IP telephony capability, then the called party is alerted to the incoming telephone call via a message on his terminal. The incoming call is then completed through the ITN to the called party as an Internet telephony call. If the called party is currently active on the IP network through an ISP, but does not have an IP telephony capability, then the PSTN forwards a message to the ISP, which pushes a message to the called party to inform him or her of the incoming call. The incoming call is then be directed onto the IP network to a messaging service, or on the PSTN to a voicemail service, or to an alternate telephone number, such as a cellular phone, for pickup by the called party.

Method of completing long distance pots calls with IP telephony endpoints

We have realized that for a connection over a large data network, such as an Internet connection that couples a web access device to a terminal server connected to an applications server, delays associated with the process of downloading large data files over such a connection, occur primarily in the leg of the connection that couples the applications server to a terminal server while little congestion is typically observed in the leg of the connection that couples the Internet access device to the terminal server. The aforementioned delay is reduced by establishing a separate connection from the applications server to the Point Of Presence server outside or independently of the backbone of the large data network thereby allowing users to receive enhanced grade of service for file transfer operations.

System for providing enhanced grade of service for connections over a large network

In a multicast capable IP network implemented over an ATM network, each client terminal on a multimedia conference, for each media type it transmits, is assigned a multicast IP address and a port number (together known as a socket) on which to transmit packets, wherein each assigned multicast IP address is unique and different than the multicast IP address assigned to any other client for any media type. Each client terminal then selects, for each media type, which clients on the conference it wants to receive packets from. Only packets that are in fact requested by a client are routed over the multicast IP network to the requesting client. A single special purpose Multicast Address Resolution System (MARS) server is associated with the conference when the conference is established. Each client terminal uses that MARS server, whether on the same or different IP sub-networks, but on a common ATM network, for purposes of mapping the multicast IP addresses used in the conference into a set of unicast ATM endpoint addresses used by the ATM-connected client terminals. Similarly, when a specific conference uses a Multicast Server, a single special purpose Multicast Server is used for all clients on the conference, whether on the same or different IP sub-networks, for purposes of establishing point-to-multipoint ATM connections to the conference endpoints.

Method for managing multicast addresses for transmitting and receiving

A subscriber to alias telephone number e-mail system can retrieve both their voice-mail messages and e-mail messages by accessing only their e-mail system. Specifically, when a calling party calls the subscriber of an alias e-mail system who is unavailable to take the call, and leaves a voice-mail message on a network-based voice-mail system, the voice-mail system stores the message. The network-based voice-mail system then determines, through a network-based database retrieval, whether the called party is a subscriber to an alias telephone number e-mail system. In such a system, e-mail messages are addressed with a name portion including a subscriber's telephone number. A translation server then translates the alias telephone number e-mail address to the subscriber's actual e-mail address and forwards the message to the subscriber. If the called party is determined to be a subscriber to such a system, the voice-mail system converts the stored voice-mail message into a text or a .WAV file and includes the converted message in an e-mail message addressed to the called party/subscriber's alias telephone number e-mail address for transmission over the Internet. The translation server then converts the alias telephone number e-mail address to the subscriber's actual e-mail address and forwards the e-mail message to the called party/subscriber's e-mail repository server at that actual address for later retrieval by the called party.

Method and system for delivering a voice message via an alias e-mail

A network information delivery system automatically determines end-user information output requirements based on predetermined data corresponding to each requesting end-user terminal. A user profile is maintained in a database either associated with a network information delivery system or with the end-user terminal and is accessed by the network information delivery device. If the network information delivery device has authority to access the end-user terminal, a program may be downloaded to the end-user terminal to determine the exact end-user terminal configuration. The program executing in the end-user terminal returns to the network information delivery device a user profile containing the end-user terminal capabilities so that the requested information may be formatted and delivered to the end-user in an optimal manner. The information to be delivered to end-users may be pre-stored in predetermined formats. The predetermined formats may be determined based on a volume of requests and the characteristic of the information. The information may also be stored in a generic format so that packaging the information for a specific user may be efficiently and timely performed.

Network information delivery system for delivering information based on

In a multicast capable IP network, each client terminal on a multimedia conference, for each media type it transmits, is assigned a multicast IP address and a port number (together known as a socket) on which to transmit packets, wherein each assigned multicast IP address is unique and different than the multicast IP address assigned to any other client for any media type. Each client terminal then selects, for each media type, which clients on the conference it wants to receive packets from. Only packets that are in fact requested by a client are routed over the multicast IP network to the requesting client. When a conference originator establishes the conference, a number of multicast IP addresses are allocated for later assignment to the clients during the conference. As each client joins the conference, it is assigned a multicast IP address from the allocated group for each media type it will transmit. Those assigned addresses are then marked as unavailable for assignment to any other client that subsequently joins the conference. When the original client later exits the conference, its assigned multicast IP address(es) is (are) marked as available for assignment to a later joining client. At the conclusion of the conference, all multicast IP addresses allocated to the conference are marked as available for use in another conference.

Cross-service connectivity between use of the telephone network and use of an e-mail data network is provided by enabling a recipient of an e-mail message to receive e-mail messages through an alias e-mail address which is directly associated with the recipient's telephone number. Thus, the alias e-mail address consists of the recipient's telephone number as the recipient name at a well-known and publicized common domain name server. A sender therefore addresses an e-mail message to the recipient to that alias e-mail address using the recipient's alias telephone number name. A message addressed to the alias e-mail address is sent to a translation server at that known domain name, where the alias telephone number-recipient name is translated to the actual e-mail address comprising the recipient's actual name and associated domain name server, and the message is then forwarded to that recipient at that actual e-mail address. Such aliasing capabilities are effected through a registration process in which the recipient registers for such a service and provides to the translation server his or her actual e-mail address and associated telephone number to which senders of messages to that recipient can use to address e-mail messages.

Method of providing seamless cross-service connectivity in

Real time delivery of multimedia information accessed either through the Internet, or otherwise, simultaneously, or sequentially time delayed to one more users, is enabled by delivering the multimedia information over a switched network via a multipoint control unit. A client establishes a connection with a server, or other remote location where desired multimedia information is resident, identifies the desired multimedia information and provides client information identifying the locations of the users. The client information may include the telephone numbers or other access numbers of each of the multiple users. The multimedia information is then delivered by a multimedia server to a bridging apparatus through a switched network guaranteeing high quality of service, secure connection and billing control. Connecting one or more users to a live agent is also made possible by providing the telephone numbers of the users and the live agent directly to the multipoint control unit. The delivery of the multimedia information can be secured by comparing the client information to a segmented 'to call' list to determine whether the client is authorized to receive the requested multimedia information. Alternatively, or in addition, security can be implemented by mounting a video camera at the client's endpoint and connecting a database running face recognition software to the multimedia server. The multimedia server's call to the user triggers the camera to take a picture of the user. The selected content is restricted to authorized users by comparing the picture to pictures of authorized faces stored in the database.

Multimedia information service access

Real-time multimedia services are transmitted over a hybrid network including a nonguaranteed quality of service packet switched local area network and a circuit switched ISDN wide area network having a centralized multimedia bridge located within the wide area network. The local area networks and multimedia bridge are interconnected via ISDN routers. An algorithm executed by the multimedia bridge receives signals from the packet switched network and detects the absence of properties needed for real-time audio visual services. The data signals are processed to compensate for the absence of the properties and then are transmitted over the wide area network to enable real-time audio visual services.

Packet mode multimedia conferencing services over an ISDN wide area

A method and system is disclosed for handling multimedia messages when the intended recipient is unavailable. The telecommunication based method and system allows a party to leave a greeting message which will be furnished to a caller when the party is unavailable. The method and system further allows a caller to leave a multimedia message for the unavailable intended recipient. The method and system further alerts the party that a multimedia message has been recorded and allows the party to retrieve the multimedia message.

Network based multimedia messaging method and system

Growing community of inventors

Manalapan, NJ, United States of America

Ram S Ramamurthy