Hassan Hagirahim - Long Branch NJ Francis R. Waldman - Fair Haven NJ
Assignee:
Avaya Technology Corp. - Basking Ridge NJ
International Classification:
H04L 1266
US Classification:
370390, 370401, 370432
Abstract:
ATM-coupled multicast data are transmitted to a multiplicity of ATM users over an IP backbone by having a controller in the IP backbone translate a pre-stored Multicast Initiating Address into a multiplicity of pre-stored pairs of addresses, each pair composed of a users ATM destination address and the IP address of the (user) gateway serving the users ATM destination, then establishing connections between the multicast source ATM address and each of the users ATM addresses, having IP routers attach the user gateways to the multicast group, and encapsulating the multicast data ATM cells in IP packets for routing to the user gateways, and decapsulating the multicast data ATM cells for routing to the user ATM addresses.
Method And Apparatus For Providing Efficient Vodsl Gateway-To-Gateway Communication
Hassan Hagirahim - Long Branch NJ Francis Waldman - Fair Haven NJ
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04M 700
US Classification:
379219, 379 2701, 370 24, 370352, 370356
Abstract:
The invention comprises a system and method for transmitting and receiving VoDSL voice traffic that avoids, where possible, the transcoding of a speech signal multiple times. The invention advantageously provides enhanced Quality of Service (QoS) by opportunistically avoiding signal degradation where VoDSL to VoDSL gateway communications may be provided.
Wavelength Division Multiplexing (Wdm) With Multi-Frequency Lasers And Optical Couplers
The present invention relates to an optical switching device for WDM systems based on multi-frequency lasers and optical couplers. A router/switch mapping of IP (or other protocols) subnets or addresses to an optical channel instead of a physical interface. Another embodiment of the invention implements the mapping directly at the source where the data transmission originates. The invention allows integration of WDM in the routers and switches, and ultimately in the information source. As a result, unnecessary opto-electrical conversion steps and physical interfaces are eliminated.
System And Method For Interconnecting Atm Systems Over An Intermediate Atm Network Using Switch Virtual Connections
A system for interconnecting ATM systems over an ATM facility using switch virtual connections, without having to reprogram existing addresses of the ATM systems when using a switching ATM service network. The system includes two or more ATM systems having an ATM system addressing scheme and an intermediate switching ATM network having an intermediate switching ATM network addressing scheme, which is independent of and unknown to the ATM systems. Calls are transmitted between hosts of different ATM systems via border node switches. The hosts are unaware of the intermediate switching ATM network addressing scheme and thus only identify the ATM system address of the called party host in a called party address information element. The border nodes serve as an interface between the two addressing schemes. A calling party border node substitutes in a called party address information element an intermediate switching ATM network address of a called party border node for the called party ATM system address to route the call over the intermediate switching ATM network.
Method And Apparatus For Transporting Atm Cell Traffic Over Ip Networks
Hassan Hagirahim - Long Branch NJ, US Francis R. Waldman - Fair Haven NJ, US
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04L012/64
US Classification:
370356, 37039551
Abstract:
A method and apparatus for transporting Asynchronous Transfer Mode protocol cells over an Internet Protocol backbone network is disclosed herein. ATM signaling cells are initially received at a source gateway interconnected to the IP backbone. The signaling message is converted to an H. 323 message and transmitted to a controller which provides ATM to IP address translation. The corresponding IP address is received at the source gateway and ATM bearer cells of the same call as the original ATM signaling cell are encapsulated with IP headers which include the IP address to form an IP packet which keeps the ATM cells intact within the packet. The IP packet is transferred onto the IP backbone network and routed to the appropriate destination gateway where the IP packets are decapsulated to retrieve the original ATM bearer cell.
Method And Apparatus For Providing Efficient Voip Gateway-To-Gateway Communication
Hassan Hagirahim - Long Branch NJ, US Francis Waldman - Fair Haven NJ, US
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04L 12/66 H04L 12/28 H04L 12/56
US Classification:
370352, 37039552
Abstract:
The invention comprises a system and method for transmitting and receiving multiplexed Voice over Internet Protocol (VoIP) traffic. The invention advantageously provides efficient gateway-to-gateway communication by reducing overhead where at least two conversations are transmitted between VoIP gateways. Additionally, signal degradation is avoided since there is no transcoding of signals.
Method Of Transmitting Packets In A Mobile 3G Network System
Hassan Hagirahim - Long Branch NJ, US Francis Waldman - Fair Haven NJ, US
Assignee:
Alcatel-Lucent USA Inc. - Murray Hill NJ
International Classification:
H04L 12/56
US Classification:
370328, 370338, 370401
Abstract:
A system and method is provided for transmitting a packet received at a Foreign Agent associated with a Packet Data Service Node where the packet has a source network layer address, such as an Internet Protocol address of a mobile station that points to a geographically remote Home Agent and a destination Internet Protocol address. The method comprises caching Internet Protocol addresses in memory, comparing the destination Internet Protocol address of the received packet with the Internet Protocol addresses in memory, and if no match is found, querying a Policy Server for a match, and forwarding the received packet with the Internet Protocol address of the Foreign Agent associated with the Packet Data Service Node as the source Internet Protocol address when the destination address of the received packet matches the Internet Protocol address in memory or Policy Server, resulting in significant savings in transport cost and response time.
Method And Apparatus To Facilitate Substituting A Standard Telephone For An Internet Protocol-Compatible Telephone Using A Same Telephone Number
Francis Waldman - Fair Haven NJ, US Manish Gupta - Old Bridge NJ, US
Assignee:
UTSTARCOM, INC. - Alameda CA
International Classification:
H04L 7/00
US Classification:
370356
Abstract:
A platform () that supports () voice over Internet Protocol services for an Internet Protocol-compatible telephone (), in response to detecting () that a given telephone-side capability of supporting the voice over Internet Protocol services for the Internet Protocol-compatible telephone is impaired, can automatically substitute () a standard telephone () for the Internet Protocol-compatible telephone such that a same telephone number as is used for the Internet Protocol-compatible telephone is also used for the standard telephone. This can comprise, at least in part, automatically interacting with a Session Initiation Protocol proxy server to facilitate the redirection of calls for the Internet Protocol-compatible telephone.