System for interception of digital cellular phone communication
US6405030B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2207/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for interception of digital cellular phone communication which is required by Communication Assistance for Law Enforcement Agency CALEA. The system includes a plurality of wide area networks which control the transmission of voice, data, file and other types of messages in a reconfigured exchange area, each area network including a plurality of air interface Base Station (BS) controlled by a central regional service point Mobile Switch Center (MSC) which is connected to an activator unit. The activator is a computer based system controlled by microprocessor and having database for permanently and temporarily storing predetermined cellular phone subscribers information and messages from and intendant for selected end users. The activator communicates with other wide area network via a physical communication network which provides communication links between the networks and the end users whether wireless or wired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.