 |
del.icio.us |
 |
Digg |
 |
Furl |
 |
|
 |
Rojo |
| Add to OnlyWire |
Clearing, in telecommunications means:
- A sequence of events used to disconnect a call and return to the ready state. It is sometimes, particularly in the context of Common Channel Signaling, called Teardown.
- Removal of data from an AIS, its storage devices, and other peripheral devices with storage capacity, in such a way that the data may not be reconstructed using normal system capabilities (i.e., through the keyboard).
Note: An AIS need not be disconnected from any external network before clearing takes place. Clearing enables a product to be reused within, but not outside of, a secure facility. It does not produce a declassified product by itself, but may be the first step in the declassification process.
Source: Contains material from Federal Standard 1037C and from MIL-STD-188 and from the National Information Systems Security Glossary
