Browse free open source C SIP Servers and projects below. Use the toggles on the left to filter open source C SIP Servers by OS, license, language, programming language, and project status.

  • Finance Automation that puts you in charge Icon
    Finance Automation that puts you in charge

    Tipalti delivers smart payables that elevate modern business.

    Our robust pre-built connectors and our no-code, drag-and-drop interface makes it easy and fast to automatically sync vendors, invoices, and invoice payment data between Tipalti and your ERP or accounting software.
  • Automated quote and proposal software for IT solution providers. | ConnectWise CPQ Icon
    Automated quote and proposal software for IT solution providers. | ConnectWise CPQ

    Create IT quote templates, automate workflows, add integrations & price catalogs to save time & reduce errors on manual data entry & updates.

    ConnectWise CPQ, formerly ConnectWise Sell, is a professional quote and proposal automation software for IT solution providers. ConnectWise CPQ offers a wide range of tools that enables IT solution providers to save time, quote more, and win big. Top features include professional quote or proposal templates, product catalog and sourcing, workflow automation, sales reporting, and integrations with best-in-breed solutions like Cisco, Dell, HP, and Salesforce.
  • 1
    OpenSIPS/OpenSER-a versatile SIP Server
    OpenSIPS (former OpenSER) is an GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms. IMPORTANT: this is no longer the main hosting for the project. This was moved on GITHUB - https://github.com/OpenSIPS/opensips
    Downloads: 25 This Week
    Last Update:
    See Project
  • 2
    sipsak is a command line tool which can send simple requests to a SIP server. It can run additional tests on a SIP server which are usefull for admins and developers of SIP enviroments. Note: the project is maintained on GitHub https://github.com/nils-ohlmeier/sipsak
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    The FCP deamon controls the netfilter (linux 2.4) firewall of the localhost by parsing its own protocol. The main purpose of this deamon is to support application level gateways (especially SIP server) to bypass firewall and NAT.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    KAMAILIO (OpenSER) - robust, secure and scalable Open Source (GPL) SIP (RFC3261) server implementation with large features set (over 90 extension modules). As of May 2009, source code is hosted by GIT repository at http://sip-router.org
    Downloads: 0 This Week
    Last Update:
    See Project
  • Sage Intacct Cloud Accounting and Financial Management Software Icon
    Sage Intacct Cloud Accounting and Financial Management Software

    Cloud accounting, payroll, and HR that grows with you

    Drive your organization forward with the right solution at the right price. AI-powered continuous accounting and ERP to support your growth now and into the future.
  • 5
    Very fast and very flexible SIP server
    Downloads: 0 This Week
    Last Update:
    See Project
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