Scheme to relocate H. 323 gatekeeper during a call when endpoint changes its zone
US6674734B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, computer program, and apparatus for allowing endpoints to move between zones of a packet-switched network. In the invention, a communication between local and remote endpoints are established via a first gatekeeper, which services a first zone of the packet-switched network, when the local endpoint is at a location serviced by the first zone of the packet-switched network. When the local endpoint moves to a location serviced by a second zone of the packet-switched network, subsequent to the initial hand-off, communication between the local and remote endpoints is maintained via the first gatekeeper and a second gatekeeper which services the second zone of the packet-switched network, by performing an initial hand-off communication control functions from the first gatekeeper to the second gatekeeper. When the local endpoint further moves to a location serviced by a third zone of the packet-switched network, communication between the local and remote endpoints is maintained via the first gatekeeper and a third gatekeeper, which services the third zone of the packet-switched network, by performing a subsequent hand-off of communication control functions from the second gatek…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.