Method for encrypted call and terminal
US10972438B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2015 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Jun 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/041
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and a corresponding terminal for an encrypted call, to resolve disadvantages of an encrypted call that is implemented relying on a key management center (KMC) and network reconstruction, and reduce costs. The method includes establishing, by a first terminal, a circuit switched call with a second terminal, determining, by the first terminal using the circuit switched call, a key for performing an encrypted call with the second terminal, and performing, by the first terminal, an encrypted call with the second terminal using the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.