Method and device for detecting whether missed call is effective
US8649769B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and device for detecting whether a missed call is valid are disclosed in the present invention. Wherein, the method for detecting whether a missed call is valid includes the following steps: when a call is not successfully established, a network side prompting a caller to enter authentication information and sending the authentication information entered by the caller to a called terminal side in a form of a short message; the called terminal side receiving and identifying an authentication short message, judging whether the authentication short message is valid, and authenticating the corresponding incoming call number to be authenticated in a cache by using the authentication information when the authentication short message is judged to be valid; and the called terminal side writing the incoming call number passing the authentication into a missed call record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.