Public switched telephone network
GPTKB entity
Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:telecommunications_company
|
| gptkbp:abbreviation |
gptkb:PSTN
|
| gptkbp:component |
gptkb:smartphone
trunk lines transmission lines subscriber lines switching centers signaling system |
| gptkbp:connects |
mobile networks
fax machines modems landline telephones |
| gptkbp:enables |
international calls
local calls long-distance calls |
| https://www.w3.org/2000/01/rdf-schema#label |
Public switched telephone network
|
| gptkbp:legacySystem |
yes
|
| gptkbp:limitation |
bandwidth
scalability data transmission speed |
| gptkbp:operatedBy |
telecommunications companies
|
| gptkbp:originatedIn |
late 19th century
|
| gptkbp:purpose |
voice communication
|
| gptkbp:regulates |
national governments
|
| gptkbp:relatedTo |
gptkb:VoIP
gptkb:smartphone telecommunications cellular network |
| gptkbp:replacedBy |
gptkb:Voice_over_IP
|
| gptkbp:standardizedBy |
gptkb:ITU-T
|
| gptkbp:supports |
emergency services
directory assistance operator services |
| gptkbp:supportsProtocol |
gptkb:ISDN
gptkb:Signaling_System_7 analog signaling digital signaling |
| gptkbp:technology |
circuit switching
|
| gptkbp:transitioningTo |
all-IP networks
|
| gptkbp:uses |
gptkb:E.164_numbering_plan
fiber optics satellite links microwave transmission undersea cables copper wires analog signals digital signals telephone numbers |
| gptkbp:分布地区 |
yes
|
| gptkbp:bfsParent |
gptkb:SIP_Trunking
|
| gptkbp:bfsLayer |
6
|