fuse of telephone exchange and jumper wire telephone number services.selective focus
Schlüsselwörter
phone,
exchange,
network,
electronic,
cable,
technology,
communication,
computer,
connection,
connect,
complex,
panel,
tree branch,
line,
digital,
phone,
communicate,
server,
internal,
technically,
central,
background,
private,
jumping,
analog,
connector,
box,
wire
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