Tag:Pstn

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• Public switched telephone network (3)
  telecom pstn networking telecommunications telephony technology w2presentation wikipedia switching tm+docs phone asterisktalk asterisk homework mobile net sco:proyecto
• E.164 (1)
  telephone numbering e.164 telephony voip telecom phone dns standard reference numbering_plan plan number recomendation review standards telecam pstn wikipedia telco check domain%3Atelecommunication docsandinfo e164 itu-t mnp length phonenumber
• Private branch exchange (1)
  pbx voip telecom sip xarxes 电信 pstn wiki fax computer ct define definition gs.tech
• PBX (1)
  pbx voip wikipedia technology phone networking telephony telecom wiki software net misc market-useful is589 network holding pstn project opensource research center business @wikipedia .imported call communication e doc development history