Patent · US Expired

Method for setting up a conference call

US7650142B2 · kind B2 · utility

40Cited by

28References

13Claims

0Family size

Assignee

Nortel Networks Limited · CA

Inventors

Timothy Longman · London, GB
Martin Sauter · Markdorf, DE
Frederic Carrier · Allen, US
Thomas Altwein · Markdorf, DE
Darin Currie · Ottawa, CA

Key dates

Filing date	Jul 8, 2004
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Jul 23, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04W28/26
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for setting up a conference call where the subscribers are not only concentrated in one area but also more widely dispersed. The method allows both groups of subscribers to be contacted for a conference call with individuals close to the point of origination of the conference call being connected to a shared channel call and any members further out being connected to the conference call using individual channels. Members who initially started with an individual channel can move closer to the point of origin and automatically join the shared channel. This is of particular use to the emergency services where they may need to co-ordinate members arriving at the scene or performing related actions further away from the scene of the emergency.

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