VOIP telecommunication concept. Business man using virtual touch screen presses abbreviation: VOIP. IP telephony and connection line web technology.
Schlüsselwörter
telephony,
voip,
phone,
concept,
business,
service,
technology,
telecom,
voice,
communication,
connection,
phone,
computer,
call,
cyberspace,
mobile,
web,
safety,
cloud,
network,
system,
cyberspace,
server,
device,
handset,
website,
page,
interface,
protocol,
networking,
protection,
software,
office,
information,
wireless,
modern,
contact,
global,
online,
telecom
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