Wireless telephone and wireless telephone system
US7123903B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Sep 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a related art mobile telephone system, the generation of an RBT (ring back tone) and a busy tone is realized by transmitting data registered in a network system to a calling telephone. In a mobile telephone system according to this invention, RBT data and the like are previously registered in a called telephone, and when a calling telephone originates a call to this called telephone, data corresponding to an operating state of the called telephone is transmitted to the calling telephone. Accordingly, an RBT and the like can be easily changed with a user's original melody or the like, whereby it is possible to improve service for the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.