Method and apparatus for facilitating the ultimate making of wireless calls to unavailable wireless telephones
US5794143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The problems with reaching unavailable mobile telephones, and the unnecessary costs associated therewith are avoided by a) marking as unavailable a wireless telephone to which a wireless telephone call could not successfully be completed; b) waiting for the wireless telephone to register, i.e., signal its availability to receive calls; and c) notifying the caller of the wireless telephone call that could not successfully complete that the wireless telephone is now available. Optionally, any call attempts to the wireless telephone during this waiting period are disallowed, i.e., no attempt is made to contact the wireless telephone over the wireless telephone service provider's network. Furthermore, resources of the wireless telephone service provider may be conserved, and unnecessary costs avoided, by disallowing call attempts to the wireless telephone during the waiting period, even if the caller of the wireless telephone call that could not successfully complete is not notified of the availability of the wireless telephone upon its registration. Additionally, if the wireless telephone shares communication facilities with a wireless data station, no attempt is made to transfer data…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.