公开(公告)号：US20170187755A1

公开(公告)日：2017-06-29

申请号：US15325288

申请日：2014-07-11

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO

IPC: H04L29/06

CPC classification number: H04L63/306 ,  H04L63/0281 ,  H04L65/1006 ,  H04L67/141

Abstract: It is provided a method, comprising checking if a value of a main correlation identifier comprised in a first correlation message received from a first node and a value of the main correlation identifier comprised in a second correlation message received from a second node different from the first node are the same, wherein the first correlation message additionally comprises a first secondary correlation identifier, and the second correlation message additionally comprises a second secondary correlation identifier; and the method further comprises generating, if the value of the main correlation identifier comprised in the first correlation message and the value of the main correlation identifier comprised in the second correlation message are the same, a main correlation message comprising the first secondary correlation identifier.

公开(公告)号：US20190289080A1

公开(公告)日：2019-09-19

申请号：US16317139

申请日：2017-07-11

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO ,  Curt WONG ,  Derek UNDERWOOD

IPC: H04L29/08 ,  H04L29/06 ,  H04L12/26

Abstract: Systems, methods, and apparatuses for correlating intercept related information (IRI) with call content (CC) for S8HR lawful interception are provided. The method may include generating at a network entity a correlation identifier. The method may also include adding the correlation identifier to a session initiation protocol message. In addition, the method may include delivering the session initiation protocol message including the correlation identifier from the network entity to another network entity.

公开(公告)号：US20170085704A1

公开(公告)日：2017-03-23

申请号：US15116420

申请日：2014-02-03

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO ,  Gabor UNGVARI

IPC: H04M3/22 ,  H04L29/06 ,  H04M3/42 ,  H04M7/00

CPC classification number: H04M3/2281 ,  H04L63/306 ,  H04L65/1016 ,  H04L65/102 ,  H04L65/105 ,  H04L65/1096 ,  H04M3/42059 ,  H04M3/42102 ,  H04M3/54 ,  H04M7/0078

Abstract: Systems, methods, apparatuses, and computer program products for security of inter-nodal communication for VoiP lawful interception are provided. One method includes receiving, by an access node, at least one identity from an internet protocol multimedia system (IMS) node, the at least one identity used by the IMS node to intercept signaling messages, compiling a target list comprising the at least one identity, receiving a message from the IMS node when a session is established, wherein the message comprises an identity for each of the parties to the session, and comparing the identity for each of the parties to the session with the at least one identity in the target list.

公开(公告)号：US20190089832A1

公开(公告)日：2019-03-21

申请号：US16079599

申请日：2017-02-17

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO ,  Ejaz SHAH ,  Raymond JONG-A-KIEM

IPC: H04M3/51 ,  H04L29/06

Abstract: Various communication systems may benefit from the appropriate mechanisms for call handling. For example, certain internet protocol (IP) multimedia subsystem (IMS) based emergency services networks may benefit from appropriate initiation of conference calls and of handling of transfers of such calls. A method can include establishing, at an egress node of a network, a media path between an ingress node of the network and the egress node. The method can also include determining that a conference call corresponding to the media path is being invoked. The method can further include contacting, by the egress node, a conference node to establish the conference call.

公开(公告)号：US20170238159A1

公开(公告)日：2017-08-17

申请号：US15503139

申请日：2014-08-11

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO ,  Peter LEIS

IPC: H04W4/22 ,  H04M7/00 ,  H04M3/51 ,  H04W40/20 ,  H04L29/06

CPC classification number: H04W4/90 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/105 ,  H04L65/1096 ,  H04M3/5116 ,  H04M7/0051 ,  H04W40/20

Abstract: Abstract: A method and apparatus can be configured to receive a first session-initiation-protocol (SIP) message relating to an attempt to make a call. The method may include determining that the attempt to make the call is an attempt to make a multime-dia-messaging-emergency-services call. The method may include transmitting an indication of the attempt to make the multimedia-messaging-emergency-services call. The indication is transmitted to a second node. The method may also include transmitting a second session-initiation-protocol message relating to a denial of serving the multimedia-messaging-emergency-services call.

公开(公告)号：US20180013880A1

公开(公告)日：2018-01-11

申请号：US15548831

申请日：2015-02-04

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Nagaraja RAO ,  Derek UNDERWOOD ,  Wolfgang BUECKER

IPC: H04M3/22 ,  H04L29/06 ,  H04M1/253

CPC classification number: H04M3/2281 ,  H04L63/0281 ,  H04L63/061 ,  H04L63/166 ,  H04L63/306 ,  H04L65/00 ,  H04L65/10 ,  H04L65/1046 ,  H04M1/2535 ,  H04M7/0072

Abstract: Certain embodiments of the invention generally relate to lawful interception of communications for IP Multimedia System-based (IMS-based) voice over IP (VoIP). For example, some embodiments relate to interception of communications including interception for encrypted, transcoded media. A method may include identifying a network node that provides call content interception. The method may also include determining a codec type used at a location of the call content interception at the network node. The method may further include sending a matched codec of the codec type used at the location of the call content interception at the network node to a delivery function in the communications network.