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  2. 10 Phone Systems for Small Businesses - AOL

    www.aol.com/10-phone-systems-small-businesses...

    Start by comparing VoIP phone service providers. ... Best small business service for integrations. ... and one new local or toll-free phone number. It integrates with email, HubSpot, Salesforce ...

  3. List of VoIP companies - Wikipedia

    en.wikipedia.org/wiki/List_of_VoIP_companies

    DSL services and Australia's National Broadband Network CallFire: Santa Monica: United States: Web-based VoIP Comwave: Toronto: Canada: Web and Mobile applications, VoIP telephone service, broadband internet providers, and commercial telecommunication service Fastweb: Milan: Italy: Landline, broadband Internet, and digital television services ...

  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. Comparison of VoIP software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_VoIP_software

    video conferencing, VoIP carriers large and small 3.7; August 15, 2014; 10 years ago () HERO Hosted PBX: Linux, Windows: Proprietary: SIP: TLS, SRTP: Unified Communications, billing server, cloud-based management and web interface Mid-large enterprises, VoIP carriers and service providers, telecom operators

  6. List of SIP software - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_software

    Avaya Application Server 5300 (AS5300), JITC certified ASSIP VoIP; Bicom Systems IP PBX for telecoms; Brekeke PBX, SIP PBX for service providers and enterprises; Cisco SIP Proxy Server, Cisco unified border element (CUBE), Cisco Unified Communication Manager (CUCM) CommuniGate Pro, virtualized PBX for IP Centrex hosting, voicemail services ...

  7. Line2 - Wikipedia

    en.wikipedia.org/wiki/Line2

    It provides similar service to applications like Skype, which also allow users to place calls over the Internet for a smaller fee than using a regular phone line. Calls can be made over Wi-Fi, a 3G or 4G phone network, or cellular voice connections. [4] Line2 also gives users two lines; one for business, the other for personal calls.

  8. Telesphere - Wikipedia

    en.wikipedia.org/wiki/Telesphere

    Telesphere is a nationwide Unified Communications as a Service provider for businesses. In 2003, Telesphere began providing highly secure cloud-based voice and data services over a private IP MPLS network to mid and large enterprises throughout the United States and now also in Europe.

  9. 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."

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