Patent · US Expired

Telephone conferencing systems

US7215647B2 · kind B2 · utility

5Cited by
13References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 15, 2002
Grant dateMay 8, 2007
Priority date
Expiry dateMay 12, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M2242/22
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A telephone conferencing system includes a voice services equipment (VSE) allowing a number of telephone calls to be connected together to form a conferencing function. Parties wishing to set up a conference agree on one of their telephone numbers being designated as a “link number”. The conference participants dial into the system and then each enters the link number. The system stores the link number in a link number store when the first caller calls in. The system also checks the caller's calling line identity (CLI) with the entered link number, and the conference will not be enabled unless there is a match; thus, the conference cannot be initiated until the link number participant has called in. Any other participant calling earlier can be put on “hold”. A number of different conferences may be taking place simultaneously, and participants will be grouped together correctly in their conference in accordance with the entered link number.

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