Patent · US Expired

Policy control and billing support for call transfer in a session initiation protocol (SIP) network

US7092385B2 · kind B2 · utility

168Cited by

6References

35Claims

0Family size

Assignee

MCI, LLC · US

Inventors

John Kenneth Gallant · Plano, US
Kathleen A. McMurry · Richardson, US
Mariafranca Gregorat · Dallas, US

Key dates

Filing date	Sep 4, 2002
Grant date	Aug 15, 2006
Priority date	—
Expiry date	Feb 1, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2215/7072
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A session initiation protocol (SIP) server adds billing and authentication information to conventional SIP messages used in establishing call transfers. This additional information is later verified by a SIP server and used to enable advanced billing and fraud protection features for call transfers in a SIP telecommunications network.

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