Group advertisement method in SIP based message service
US8032411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/45
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A group advertisement method in a SIP (Session Initiation Protocol) based message service, and a PT client device are discussed. According to an embodiment, the method includes receiving, by a PT server, a request to send a group advertisement message for a specific PT group from a requesting PT client; determining, by the PT server, if the specific PT group is a restricted chat group or a pre-arranged group; determining, by the PT server, if the requesting PT client is allowed to send a group advertisement based on a PT group document associated with the specific PT group; and selectively transmitting, by the PT server, the group advertisement message to at least one member of the specific PT group based on results of the determining steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.