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2. List of VoIP companies - Wikipedia

   en.wikipedia.org/wiki/List_of_VoIP_companies

   VoIP and mobile phone services sipservice: Winterthur: Switzerland: VoIP service provider TELES AG: Berlin: Germany: VoIP services VirtualPBX: San Jose, CA: United States: Cloud-based telephone systems VocalTec: West Palm Beach and Netanya: United States and Israel: Telecom equipment provider VoiceHost: London: United Kingdom: VoIP and DSL ...

3. List of mobile network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_network...

   This is a list of mobile network operators (MNOs) in the United States. The Cellular Telecommunications & Internet Association (CTIA), lists approximately 30 facilities-based wireless service providers in the United States as members. Competitive Carriers Association (CCA) has over 100 members. [1]

4. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

5. Category:VoIP companies of the United States - Wikipedia

   en.wikipedia.org/wiki/Category:VoIP_companies_of...

   Pages in category "VoIP companies of the United States" The following 43 pages are in this category, out of 43 total. This list may not reflect recent changes .

6. Voice over IP - Wikipedia

   en.wikipedia.org/wiki/Voice_over_IP

   The VoIP E911 emergency-calling system associates a physical address with the calling party's telephone number. All VoIP providers that provide access to the public switched telephone network are required to implement E911, a service for which the subscriber may be charged. "VoIP providers may not allow customers to opt-out of 911 service."

7. Top VoIP Technology Providers Settle Lawsuit Creating a Win ...

   www.aol.com/news/2013-01-08-top-voip-technology...

   Top VoIP Technology Providers Settle Lawsuit Creating a Win for Consumers magicJack VocalTec Ltd Moves for the Dismissal of Suit against netTALK MIAMI--(BUSINESS WIRE)-- magicJack VocalTec Ltd ...