Patent · US Active

Method and system for video telephone communications set up, related equipment and computer program product

US8488591B2 · kind B2 · utility

91Cited by
9References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 23, 2004
Grant dateJul 16, 2013
Priority date
Expiry dateJun 25, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M2201/50
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A method of setting up a video telephone call between a first video telephone terminal and a second video telephone terminal on a data network includes the steps of: establishing a telephone call over a telephone network between the first and second terminals; exchanging between the first and second terminals during the telephone call availability signals to seek availability to hold a video telephone call; if the availability is confirmed, releasing the telephone call; establishing respective telephone calls between each of the first and second terminals and a corresponding access server of the data network, for achieving connection of the first and second terminals to the data network; establishing a signalling exchange between the first and second terminals through a service center of the data network to achieve the set up of the video telephone call; and establishing a peer-to-peer video telephone call between the first and second terminals over the data network.

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