Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
digital telephone exchange system
|
| gptkbp:architecture |
modular
|
| gptkbp:competitor |
gptkb:Ericsson_AXE
gptkb:Siemens_EWSD Alcatel E10 |
| gptkbp:developedBy |
gptkb:ITT_Corporation
|
| https://www.w3.org/2000/01/rdf-schema#label |
ITT System 12
|
| gptkbp:introducedIn |
1977
|
| gptkbp:marketedIn |
gptkb:Asia
gptkb:Europe gptkb:North_America |
| gptkbp:replacedBy |
analog telephone exchanges
|
| gptkbp:status |
obsolete
|
| gptkbp:supports |
gptkb:ISDN
gptkb:PSTN |
| gptkbp:technology |
digital switching
|
| gptkbp:usedIn |
public telephone networks
|
| gptkbp:bfsParent |
gptkb:ITT_Telecommunications
|
| gptkbp:bfsLayer |
7
|