Patent · US Expired

Telecommunication network system and method in communication services using session initiation protocol

US7251254B2 · kind B2 · utility

19Cited by
3References
36Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 3, 2003
Grant dateJul 31, 2007
Priority date
Expiry dateJan 30, 2026

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L65/403
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

An implementation of a voice-over-Internet protocol (VoIP) system for accomplishing two-way, three-way and conference calling between two or more parties is disclosed, in which new call features are readily adapted. The VoIP system is implemented in a Session Initiation Protocol (SIP) framework in which aspects of Distributed Feature Composition (DFC) architecture are modified and applied to overcome known limitations in the adaptability of existing VoIP frameworks.

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