Genband US LLC

Santera Systems, Inc.

Genband Inc.

San-Qi Li

David Z Lu

Edward Y Qian

Yen Shei

Rupert Zhu

Weijun Lee

Hao Hou

Na Li

Stephen R Barnes

Jingdong Ye

Yong He

Chen Cao

Thomas A Cain

Mathew C Perry

Cathy Fulton

Ya-Nan Long

The subject matter described herein includes methods, systems, and computer program products for storing communication session information at a network interface module. One method described herein includes receiving a plurality of RTCP packets associated with a communication session at a network interface module. RTCP information is extracted from at least one of the packets. The extracted RTCP information is stored in memory local to the network interface module.

Methods, systems, and computer program products for storing communication session data at a network interface module

Methods, systems and computer program products for storing communication session information at a network interface module

A media gateway includes a non-packet switching matrix operable to switch non-packetized data, a packet switching matrix operable to switch packetized data, a plurality of processing resources coupled to the non-packet and packet switching matrices, each processing resource processing a substantially equal load of multimedia sessions processed by the media gateway without inactive protecting resources.

System and method for load sharing among a plurality of resources

The subject matter described herein includes methods, systems, and computer program products for oversubscription of wireless media gateway resources. According to one aspect, the subject matter described herein includes a method for oversubscription of wireless media gateway resources. The method includes defining at least one per-resource oversubscription factor for wireless media gateway resources required by at least one wireless network connection. The wireless media gateway resources are provisioned for the at least one wireless network connection using the at least one per-resource oversubscription factor. Allocating the wireless media gateway resources to the at least one wireless connection network includes oversubscribing the wireless media gateway resources by an amount based on the at least one per-resource oversubscription factor to increase utilization of the wireless media gateway resources by increasing the number of wireless network connections that the wireless media gateway is capable of serving.

Methods, systems, and computer program products for oversubscription of wireless media gateway resources

A method of measuring network quality for VoIP calls comprises setting up a test call from a local IP endpoint to a remote IP endpoint reachable by a logical trunk group associated with the local IP endpoint, receiving statistical data regarding the test call, tearing down the test call, processing the statistical data and generating measurement results, and routing a VoIP call using a route selected based at least in part on the measurement results.

System and method for determining network quality for voIP calls

The subject matter described herein includes methods, systems, and computer program products for load balanced and symmetric SPF path computations for VoIP traffic engineering. One method includes advertising an output interface cost in a first direction over a first network segment between a source IP device and a destination IP device that is different from an output interface cost in advertised in a second direction over the first network segment. A plurality of available network paths between the source IP device and the destination IP device is identified. A path cost is calculated for each of the available network paths from the source IP device to the destination IP device. Calculating a path cost includes, for paths that include the first network segment, substituting the output interface cost advertised in the first direction with the output interface cost advertised in the second direction. The path costs are ranked based on the calculated costs. A lowest cost path is selected from the ranked paths. Both directions of a media session are assigned to the lowest cost path.

Methods, systems, and computer program products for load balanced and symmetric path computations for VoIP traffic engineering

An apparatus that includes a packet data ingress, a packet data egress, and a packet data switching matrix configured to switch packet data from the packet data ingress to the packet data egress. The apparatus may further include a packet data jitter buffer and a packet data splitter, wherein the packet data splitter interposes the packet data ingress and the packet data switching matrix and is configured to multicast the packet data to the packet data switching matrix and the jitter buffer.

QoS measurement with split-path zero-latency virtual jitter buffer

The subject matter described herein includes methods, systems, and computer program products for source-aware IP routing at a media gateway. According to one aspect, a method for source-aware IP routing at a media gateway is provided. The method includes providing a packet including a layersource address and a layerdestination address at a media gateway having a source-aware routing table. Using the destination address included in the packet, at least one entry corresponding to the destination address is located in the source-aware routing table, where the located entry contains at least a portion of a source IP address, at least a portion of a destination IP address and routing information including an interface identifier and a next hop identifier. From among the at least one located entry corresponding to the destination IP address information, at least one entry corresponding to the source IP address included in the packet is located. Based on the routing information located in the routing table, the packet is routed to the destination.

Methods, systems, and computer program products for source-aware IP routing at a media gateway

Method, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers are provided. In one example, a media gateway includes multiple media processing hosts and a multiple network interfaces separate from the media processing hosts. At least one of the media processing hosts is reachable via at least two of the network interfaces. Next-hop routers associated with the network interfaces advertise reachability information regarding the media processing hosts to routers in the network. The next-hop routers also participate in network routing protocols to form multiple paths between the media gateway and a remote media gateway. Costs may be assigned to associations between the media processing hosts and the next-hop routers for traffic engineering purposes.

Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers

Methods, systems, and computer program products for implementing link redundancy in a media gateway are provided according to one method, a media gateway link protection group is provisioned to associate with a common VLAN a common virtual local area network (VLAN) primary and secondary links associated with at least one line card in a media gateway. The primary and secondary links are connected using a cross connection between ports associated with the at least one line card. At run time, traffic is automatically bridged between the primary and secondary links using the common VLAN and the cross connection.

Methods, systems, and computer program products for implementing link redundancy in a media gateway

An apparatus including a sub-element processing (SEP) module configured to perform sub-element and/or per-session processing for each of a plurality of data elements included in data being switched between ones of a plurality of transmission links. The data can include wireless packet data, wireless non-packet data, wireline packet data, wireline non-packet data, and combinations thereof. The sub-element and/or per-session processing includes at least one of extracting and bundling at least one of voice data, encoding data and signaling data corresponding to one of a plurality of channels or sessions bundled within individual ones of the plurality of data elements.

Apparatus and methods for per-session switching for multiple wireline and wireless data types

Methods and systems for per-session traffic rate policing in a media gateway include receiving voice over IP (VoIP) packets at a media gateway where it is determined whether each VoIP packet is associated with an existing VoIP session in the media gateway. A per-session traffic rate policing policy is applied to the packets associated with the existing sessions in the media gateway. In response to determining that a packet violates the per-session traffic rate policing policy, the packet is discarded.

Methods and systems for per-session traffic rate policing in a media gateway

A switching system includes at least one packet processing circuit interfacing with at least one packet transmission link. The switching system further includes a switch fabric coupled to the at least one packet processing circuit, whereby the switch fabric is operable to switch between channels receiving and transmitting data over the at least one packet transmission link and channels receiving and transmitting data over at least one non-packet transmission link interfaced by the switch fabric.

Voice packet switching systems and methods

Methods, systems, and computer program products for multipath Shortest-Path-First (SPF) computations and distance-based interface selection for VoIP traffic are disclosed. According to one method, a multi-path router instance associated with a plurality of network interfaces in a source IP device is provided. A cost is assigned to each of a plurality of internal segments between the multi-path router instance and the network interfaces associated with the multi-path router instance. An aggregate cost is calculated for each of a plurality of traffic paths originating at the multi-path router instance in the source IP device and extending through each of the network interfaces associated with the multi-path router instance to a destination IP device in the network. A list of IP paths is generated, and the paths in the list are ranked based on the calculated cost. Traffic is sent from the source IP device over at least one of the paths in the list. The path costs and rankings are updated in response to segment cost changes.

Methods, systems, and computer program products for multi-path shortest-path-first computations and distance-based interface selection for VoIP traffic

Growing community of inventors

Plano, TX, United States of America

San-Qi Li