Patent · US Expired

Tracing method and system

US7277702B2 · kind B2 · utility

18Cited by
5References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 4, 2002
Grant dateOct 2, 2007
Priority date
Expiry dateJul 7, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M3/2281
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A method for tracing a session or call in a network environment, comprising the step of transmitting a trace invocation from a control plane network element to another control pane network element or a user plane network element. According to a first aspect, a trace report is generated in the S-CSCF of the called party. This overcomes the lack of being able to provide detailed information about the interworking between the User Equipment (UE) and the IMS, in setting up IP multimedia sessions. According to a second aspect trace reports are generated in all the network functions involved in session setup.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.