公开(公告)号：US10193938B2

公开(公告)日：2019-01-29

申请号：US15702575

申请日：2017-09-12

Applicant: Metaswitch Networks Ltd

Inventor： Salem Al-Damluji ,  Phillip James Springett

IPC: H04L29/06 ,  H04M3/46

Abstract: A network node, during setup of a communication session between a calling party and at least a called party, receives a first provisional response message from a first device comprising first session description protocol (SDP) data; and forwards it on to a calling party device associated with the calling party, the forwarded first provisional response message comprising at least a part of the first SDP data. The network node receives a second provisional response message comprising second SDP data from a second device. Responsive to receipt of the second provisional response message, the network node transmits, during communication session setup, a message to the calling party device which offers to update the SDP data; removes the second SDP data from the second provisional response message; and transmits the second provisional response message from which the second SDP data has been removed to the calling party device.

公开(公告)号：US20130188649A1

公开(公告)日：2013-07-25

申请号：US13793658

申请日：2013-03-11

Applicant: METASWITCH NETWORKS LTD.

Inventor： Oliver James Carter ,  Christopher Richard Gibbs ,  Oliver Fairless Nicolson ,  Phillip James Springett

IPC: H04L29/08

CPC classification number: H04L67/146 ,  H04L9/0631 ,  H04L29/08621 ,  H04L63/0428 ,  H04L65/1006 ,  H04L65/104 ,  H04L65/1043 ,  H04L65/1053 ,  H04L65/80 ,  H04M7/006

Abstract: Measures for use in processing communication sessions in a telecommunications network are provided. Each communication session has a signalling path spanning a plurality of devices including one or more intermediate network devices and at least two endpoint devices, the signalling path comprising a plurality of signalling segments, each segment being between two devices in the plurality of devices. A first signalling message, comprising a first identifier associated with the communication session, is received via a first signalling segment for a communication session. At least part of the first identifier is transformed using a deterministic encryption algorithm to generate a second identifier. A second signalling message, comprising the second identifier, is transmitted via a second signalling segment for the communication session to associate the second identifier with the communication session.

Abstract translation: 提供了用于处理电信网络中的通信会话的措施。 每个通信会话具有跨越包括一个或多个中间网络设备和至少两个端点设备的多个设备的信令路由，该信令路径包括多个信令段，每个段位于多个设备中的两个设备之间。 经由用于通信会话的第一信令段接收包括与通信会话相关联的第一标识符的第一信令消息。 使用确定性加密算法来转换第一标识符的至少一部分以生成第二标识符。 包括第二标识符的第二信令消息经由用于通信会话的第二信令段被发送以将第二标识符与通信会话相关联。

公开(公告)号：US10057160B2

公开(公告)日：2018-08-21

申请号：US15073491

申请日：2016-03-17

Applicant: METASWITCH NETWORKS LTD

Inventor： Phillip James Springett ,  Max Dymond ,  Ryan Peter Norris ,  Oliver Edward Pratt ,  George Malcolm Gilbert

IPC: H04L12/707 ,  H04L12/24 ,  H04L12/26

CPC classification number: H04L41/0659 ,  H04L43/0811

Abstract: Measures for use in routing data in a data communications network. A request to route data to a given destination in the network is received. A route to the given destination is first selected from a plurality of routes to the given destination stored in a routing table. Routing the data to the given destination using the first selected route is attempted. In response to receipt of an indication that routing the data to the given destination via the first route failed, a second, different route to the given destination is second selected from the plurality of routes to the given destination stored in the routing table. The second selecting includes omitting, for the purposes of the second selection, at least one route to the given destination from the plurality of routes to the given destination stored in the routing table.

公开(公告)号：US09521203B2

公开(公告)日：2016-12-13

申请号：US14850761

申请日：2015-09-10

Applicant: METASWITCH NETWORKS LTD

Inventor： Oliver James Carter ,  Christopher Richard Gibbs ,  Oliver Fairless Nicolson ,  Phillip James Springett

IPC: H04L12/28 ,  H04L29/08 ,  H04M7/00 ,  H04L9/06 ,  H04L29/06

CPC classification number: H04L67/146 ,  H04L9/0631 ,  H04L29/08621 ,  H04L63/0428 ,  H04L65/1006 ,  H04L65/104 ,  H04L65/1043 ,  H04L65/1053 ,  H04L65/80 ,  H04M7/006

Abstract: Measures for use in processing communication sessions in a telecommunications network are provided. Each communication session has a signaling path spanning a plurality of devices including one or more intermediate network devices and at least two endpoint devices, the signaling path comprising a plurality of signaling segments, each segment being between two devices in the plurality of devices. A first signaling message, comprising a first identifier associated with the communication session, is received via a first signaling segment for a communication session. At least part of the first identifier is transformed using a deterministic encryption algorithm to generate a second identifier. A second signaling message, comprising the second identifier, is transmitted via a second signaling segment for the communication session to associate the second identifier with the communication session.

Abstract translation: 提供了用于处理电信网络中的通信会话的措施。 每个通信会话具有跨越包括一个或多个中间网络设备和至少两个端点设备的多个设备的信令路由，该信令路径包括多个信令段，每个段位于多个设备中的两个设备之间。 经由用于通信会话的第一信令段接收包括与通信会话相关联的第一标识符的第一信令消息。 使用确定性加密算法来转换第一标识符的至少一部分以生成第二标识符。 包括第二标识符的第二信令消息经由用于通信会话的第二信令段被发送以将第二标识符与通信会话相关联。

公开(公告)号：US09160608B2

公开(公告)日：2015-10-13

申请号：US13793658

申请日：2013-03-11

Applicant: Metaswitch Networks Ltd.

Inventor： Oliver James Carter ,  Christopher Richard Gibbs ,  Oliver Fairless Nicolson ,  Phillip James Springett

IPC: H04L12/66 ,  H04L29/08 ,  H04M7/00 ,  H04L29/06

CPC classification number: H04L67/146 ,  H04L9/0631 ,  H04L29/08621 ,  H04L63/0428 ,  H04L65/1006 ,  H04L65/104 ,  H04L65/1043 ,  H04L65/1053 ,  H04L65/80 ,  H04M7/006

Abstract: Measures for use in processing communication sessions in a telecommunications network are provided. Each communication session has a signalling path spanning a plurality of devices including one or more intermediate network devices and at least two endpoint devices, the signalling path comprising a plurality of signalling segments, each segment being between two devices in the plurality of devices. A first signalling message, comprising a first identifier associated with the communication session, is received via a first signalling segment for a communication session. At least part of the first identifier is transformed using a deterministic encryption algorithm to generate a second identifier. A second signalling message, comprising the second identifier, is transmitted via a second signalling segment for the communication session to associate the second identifier with the communication session.

Abstract translation: 提供了用于处理电信网络中的通信会话的措施。 每个通信会话具有跨越包括一个或多个中间网络设备和至少两个端点设备的多个设备的信令路由，该信令路径包括多个信令段，每个段位于多个设备中的两个设备之间。 经由用于通信会话的第一信令段接收包括与通信会话相关联的第一标识符的第一信令消息。 使用确定性加密算法来转换第一标识符的至少一部分以生成第二标识符。 包括第二标识符的第二信令消息经由用于通信会话的第二信令段被发送以将第二标识符与通信会话相关联。