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Global connect telecommunications, cell communications, Internet connectivity, mobile connectivity, 175 countries /

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Telecommunications challenges in developing countries asymmetric interconnection charges for rural areas / 著者: Dymond, Andrew, 1947-

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Competition in international voice communications

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Calling for help language and social interaction in telephone helplines /

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FreePBX 2.5 powerful telephony solutions configure, deploy, and maintain an enterprise-class VoIP PBX / 著者: Robar, Alex

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The 3CX IP PBX tutorial develop a fully functional, low cost, professional PBX phone system using 3CX / 著者: Landis, Matthew M.

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Next generation 9-1-1 著者: Zelik, Eugene B.

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The people's network : the political economy of the telephone in the Gilded Age / 著者: MacDougall, Robert, 1971-

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Telephone triage protocols for nurses / 著者: Briggs, Julie K.

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Telephone triage for oncology nurses / 著者: Hickey, Margaret, Newton, Susan

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A technical analysis of the common carrier/user interconnections area : a report of the Panel on Common Carrier/User Interconnections, Computer Science and Engineering Board, Natio...

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