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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 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.

4. Internet Telephony Services Providers' Association - Wikipedia

   en.wikipedia.org/wiki/Internet_Telephony_Services...

   Best Consumer VoIP: BT Group; Best Business ITSP (Small Enterprise): VoiceHost; Best Business ITSP (Medium Enterprise): Voxhub; Best Business ITSP (Corporate): Timico; Best VoIP CPE: Grandstream Networks – GXP2200 Enterprise Application Phone for Android™ Best VoIP Infrastructure: Genband – GENBAND Web Application Manager (WAM)

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

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

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

6. Vonage - Wikipedia

   en.wikipedia.org/wiki/Vonage

   Vonage Holdings Corp. (/ ˈ v ɒ n ɪ dʒ /, or simply Vonage) is an American cloud communications provider operating as a subsidiary of Ericsson.Headquartered in Holmdel Township, New Jersey, the organization was founded in 1998 as Min-X as a provider of residential telecommunications services based on voice over Internet Protocol (VoIP).

7. SIP trunking - Wikipedia

   en.wikipedia.org/wiki/SIP_trunking

   SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. [1]