Kaomojis
☎️🌐📞
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#PSTN
#public switched telephone network
#landline
#global network
#telecommunications
☎️🪨🔌
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#telephone network
#fixed line
#PSTN
#utility pole
#phone lines
#traditional telecom
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#landline network
#phone connection
#PSTN
#telecommunication lines
#phone circuit
#wireline
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#PSTN
#telephone switching
#circuit switching
#phone connection
#call routing
#landline network
#PSTN #public switched telephone network #landline #global network #telecommunications