Automatic call generator with a mobile telecommunications network based upon mobile subscriber's location
US5819180A · kind A · utility
39Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile subscriber enters a service code followed by a called party number. An application module associated with a mobile station stores the received called party number at an attached Subscriber Identity Module (SIM) card. After determining that the mobile station has traveled into the designated home zone, the application module retrieves the stored called party number and automatically originates an outgoing call towards the called party number. By waiting until the mobile station has entered the home zone, the resulting call connection avoids additional air time charges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.