telephony management and telecommunications services system concept

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IP telephony management and telecommunications services system concept Royalty Free Stock Photo
April 4, 2019, Brazil. KT Corporation logo on the mobile device. KT is a South Korean company that provides telephone and wireless Royalty Free Stock Photo
   
   
   
   
   
IP telephony management and telecommunications services system concept
   
   
   
   
   
   
   
IP telephony management and telecommunications services system concept, business hand dialing ip telephone device, datacenter with rack servers and monitor, night cityscape background

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