Methods for managing presence information in a real-time communications network
US7707286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Mar 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/45
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods for updating presence information between a first user equipment (UE) and a second UE over a communications network are presented including: on an INVITE message delivery failure to the second UE from the first UE, sending a first PUBLISH message on behalf of the second UE to a presence server by a communications server; sending a NOTIFY message to the first UE by the presence server; and setting a current presence status of the second UE to UNAVAILABLE. In some embodiments, methods further include: if an immediately previous presence status of the second UE is set to AVAILABLE, sending a NOTIFY message to all watchers of the second UE to indicate the current presence status of the second UE. In some embodiments, the first PUBLISH message utilizes a user-agent header to indicate that the communications server originated the first PUBLISH message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.