Announcing presence information during telephone call ringback
US7620160B2 · kind B2 · utility
24Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Apr 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2203/654
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and system for outputting a call announcement based on presence information of a callee as a ringback tone is provided. The announcement system is provided with presence information of users. When the telephone system receives an indication of an incoming call from a caller, the telephone system identifies the callee. After the callee is identified, the announcement system retrieves the presence information for the callee and generates an announcement based on that presence information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.