VoIP Software for Windows Server

Browse free open source VoIP software and projects for Windows Server below. Use the toggles on the left to filter open source VoIP software by OS, license, language, programming language, and project status.

  • The #1 Embedded Analytics Solution for SaaS Teams. Icon
    The #1 Embedded Analytics Solution for SaaS Teams.

    Qrvey saves engineering teams time and money with a turnkey multi-tenant solution connecting your data warehouse to your SaaS application.

    Qrvey’s comprehensive embedded analytics software enables you to design more customizable analytics experiences for your end users.
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  • Top-Rated Free CRM Software Icon
    Top-Rated Free CRM Software

    216,000+ customers in over 135 countries grow their businesses with HubSpot

    HubSpot is an AI-powered customer platform with all the software, integrations, and resources you need to connect your marketing, sales, and customer service. HubSpot's connected platform enables you to grow your business faster by focusing on what matters most: your customers.
    Get started free
  • 1
    Siemens Gigaset S450IP Handset Administration tool Features: - Login / Logout - Backup contacts - Delete Contacts - Upload Contacts (from file or Outlook) Constraints (at the moment): - Only first handset supported
    Downloads: 0 This Week
    Last Update:
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  • 2
    OpenCallshop for VoIP Switch was started to be an alternitive to VoipSwitch Inc. closed source callshop systems, You can extend development of this project and customize it to fit your needs. if you would like to get a custom developed callshop desktop or web software do not hesitate to contact me. if you're reseller this product consider a donation.
    Downloads: 0 This Week
    Last Update:
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  • 3
    An open source software project delivering converged voice and data applications. The StarPound platform enables you to rapidly develop voice and data solutions using the power of business process modeling. More info: http://www.starpound.org.
    Downloads: 0 This Week
    Last Update:
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  • 4
    TALK provides an efficient and scalable architecture to make CTI more easy and web oriented. TALK includes a generic JTAPI connector, a full AJAX client, a Gadget, and a library to allows your web applications to be connected to your PBX.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Payroll Services for Small Businesses | QuickBooks Icon
    Payroll Services for Small Businesses | QuickBooks

    Save up to 50% on QuickBooks Online! Keep the Accounting and Book Keeping for your Small Business up to date!

    Easily pay your team and access powerful tools, employee benefits, and supportive experts with the #1 online payroll service provider. Manage payroll and access HR and employee services in one place. Pay your team automatically once your payroll setup is complete. We'll calculate, file, and pay your payroll taxes automatically.
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