|
gptkbp:instanceOf
|
gptkb:communication
|
|
gptkbp:component
|
gptkb:smartphone
gptkb:transmission_line
subscriber line
switching center
end instrument
|
|
gptkbp:dateOfInception
|
1876
|
|
gptkbp:enables
|
fax transmission
modem communication
emergency calling
local calling
long-distance calling
|
|
gptkbp:inventedBy
|
gptkb:Alexander_Graham_Bell
|
|
gptkbp:regulates
|
national telecommunications authorities
|
|
gptkbp:replacedBy
|
mobile networks
internet telephony
|
|
gptkbp:subjectOf
|
gptkb:network_topology
network protocols
network security
network management
telecommunications engineering
network reliability
network switching
network signaling
|
|
gptkbp:supportsProtocol
|
gptkb:ISDN
gptkb:SS7
analog signaling
digital signaling
|
|
gptkbp:type
|
gptkb:public_switched_telephone_network
gptkb:private_branch_exchange
gptkb:cellular_network
VoIP network
|
|
gptkbp:usedFor
|
data transmission
voice communication
|
|
gptkbp:uses
|
gptkb:fiber
gptkb:radio_waves
satellite links
microwave transmission
copper wire
|
|
gptkbp:分布地区
|
yes
|
|
gptkbp:bfsParent
|
gptkb:pulse-code_modulation
gptkb:No._3_ESS_switch
gptkb:UUCP_for_Usenet_distribution
|
|
gptkbp:bfsLayer
|
6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
telephone networks
|