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NANPA : North American Numbering Plan Administration
描述: North American Numbering Plan for the Public Switched Telephone Network
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网站主题: directories data
PT is a global supplier of IP-centric network elements and applications for service provider, OEM, aerospace, physics, military and government markets.
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TADS empowers private schools through services and innovative tools for Admissions, Enrollment, Financial Aid and Billing & Tuition Management.
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VoIP news, trends, experts, product reviews. Carrier and enterprise-class voice over ip.
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3.9 / 5.0, 语: English
VoIP Solutions Company
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Information about the IEEE 802 standards and the committee who creates them.
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Leader in Internet Fax, Email to Fax, Fax to Email, Broadcast Fax, EDI and Messaging.
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This is a set of technical resources for network engineers and system administrators; includes whois and traceroute.
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Online personalized and interactive voice broadcasting service
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4.3 / 5.0, 语: English