On-Premises PBX Software Companies

Find the best On-Premises PBX Software companies for your business. Compare case studies, success stories, & testimonials from the top On-Premises PBX Software vendors.

1-9 of 9 On-Premises PBX Software companies
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  • Overall Reference Rating 4.7

    Unify

    Premium
    On-Premises PBX Software

    Unify is one of the world’s leading communications software and services firms, providing integrated communications solutions for approximately 75 percent of the Fortune Global 500. Their solutions unify multiple networks, …

  • Overall Reference Rating 4.7

    Avaya

    Premium
    On-Premises PBX Software

    Avaya is a leading provider of solutions that enable customer and team engagement across multiple channels and devices for better customer experience, increased productivity and enhanced financial performance. Its world-class …

  • Overall Reference Rating 4.8

    RingCentral

    Verified
    On-Premises PBX Software

    RingCentral, Inc. (NYSE: RNG) is a leading provider of cloud-based business communications solutions. Easier to manage and more flexible than on-premises communications systems, RingCentral's cloud solution meets the needs of …

  • Overall Reference Rating 4.7

    Mitel

    Verified
    On-Premises PBX Software

    Mitel is a global market leader in enterprise and mobile communications powering more than 2 billion business connections and 2 billion mobile subscribers every day, Mitel (Nasdaq: MITL) (TSX: MNW) …

  • Overall Reference Rating 4.7

    AudioCodes

    Verified
    On-Premises PBX Software

    AudioCodes (NASDAQ, TASE: AUDC) is a leading vendor of advanced voice networking and media processing solutions for the digital workplace. With a commitment to the human voice deeply embedded in …

  • Overall Reference Rating 4.8
    On-Premises PBX Software

    Ribbon Communications is a company with two decades of leadership in real-time communications. Built on world class technology and intellectual property, the company delivers intelligent, secure, embedded real-time communications for …

  • Overall Reference Rating 4.8
    On-Premises PBX Software

    Sangoma Technologies is a trusted leader in delivering Unified Communications solutions for SMBs, Enterprises, OEMs, Carriers and service providers. Sangoma’s globally, scalable offerings include both on-premises and cloud-based phone systems, …

  • Overall Reference Rating 4.7
    On-Premises PBX Software

    NEC Corporation is a leader in the integration of IT and network technologies that benefit businesses and people around the world. By providing a combination of products and solutions that …

  • On-Premises PBX Software

    Estech Systems, Inc. (ESI) is a leading provider of cloud and on-premises business phone solutions, specializing in Cloud Phones for Lawyers and integrating with major practice management systems.