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

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  • 1
    This project implements a simple STUN server and client on Windows, Linux, and Solaris. The STUN protocol (Simple Traversal of UDP through NATs) is described in the IETF RFC 3489, available at http://www.ietf.org/rfc/rfc3489.txt
    Downloads: 61 This Week
    Last Update:
    See Project
  • 2
    PBXinaFlash 3/ IncrediblePBX
    Longing for the good old days of Asterisk@Home? Welcome back to the steroid-enhanced version. PBX in a Flash 3.0 & Incredible PBX 2020/2021/2022/2027 are the latest Lean, Mean Asterisk Machines, high-performance, turnkey Asterisk PBXs that are easy to upgrade. Features include Rocky8, CentOS/SL 7.x, Ubuntu 22.04 & 20.04, Debian 10 and Raspbian 10 support with Asterisk 20/18/16 and FreePBX 16/15 GPL modules. Add-ons include one-click installs of Incredible Fax and many other Asterisk utilities. Visit Nerd Vittles for the latest tutorials.
    Downloads: 39 This Week
    Last Update:
    See Project
  • 3
    Gammu

    Gammu

    Cellular manager for mobile phones/modems

    Gammu is a cellular manager for mobile phones/modems. It contains libraries and functions for ringtones,logos,phonebook,SMS,etc. (used by external software), a command line version (with backup/restore) and SMS gateway (with MySQL and PostgreSQL supp
    Downloads: 16 This Week
    Last Update:
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  • 4
    VSCP Protocol & Friends
    A project for a highly scalable protocol and framework and a collection of software tools for m2m (machine to machine communication) and IoT Internet of Things. The programs here works on Windows and Linux and are based around VSCP, The Very Simple Control Protocol. Repository is here: https://github.com/grodansparadis/vscp_software and here https://github.com/grodansparadis/vscp_firmware
    Downloads: 9 This Week
    Last Update:
    See Project
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  • 5
    Java SIP softphone
    Peers is a very simple softphone. It's a SIP User-Agent, written in java, it works on windows, linux and mac. It can be used with SIP servers like opensips or asterisk IPBX. It supports G711 codec (PCMU and PCMA) and telephone-events (DTMF).
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Using the new C# Dll from swig portability of Openobex/ObexFtp to write a nice GUI able to transfer file between two devices with obex protocol. More Info’s here: http://cs-obexftp.wiki.sourceforge.net/
    Downloads: 11 This Week
    Last Update:
    See Project
  • 7
    Stuntman - STUN server and client

    Stuntman - STUN server and client

    High performance, production quality STUN server and client library

    New version 1.2. This is the code to STUNTMAN - an open source STUN server and client code by john selbie. Compliant with the latest RFCs including 5389, 5769, and 5780. Also includes backwards compatibility for RFC 3489. ICE and WebRTC ready. Version 1.2 compiles on Linux, MacOS, BSD, and Solaris. Supports the STUN protocol on both UDP and TCP for both IPv4 and IPv6. Windows binaries are also provided. Additional features are in development. This is a mirror of the code on https://github.com/jselbie/stunserver More details on the project's website: http://www.stunprotocol.org
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    Downloads: 11 This Week
    Last Update:
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  • 8

    The ASN.1 Compiler

    Go to github.com/vlm/asn1c for the latest version.

    This ASN.1 compiler turns ASN.1 specifications into C code. The asn1c is shipped together with conformant BER/DER/XER/PER codecs. The X.509, GSM TAP3, MEGACO, RRC and LDAP encoding and decoding examples are part of the source code distribution. NOTE: THE asn1c PROJECT HAS LARGELY MOVED TO GITHUB: http://github.com/vlm/asn1c
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    JRemoteControl is a simple Java™ driven bluetooth remote control.It allows you to initiate virtually any task on your PC from a J2ME enabled device.Default configuration supports mplayer on Win and Linux platform.Additional packages are available too.
    Downloads: 9 This Week
    Last Update:
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  • 10
    ATEN플O !!! ESTE SITE MUDOU-SE PARA <a href=http://www.sourceforge.net/projects/smsbr>http://www.sourceforge.net/projects/smsbr</a>.
    Downloads: 9 This Week
    Last Update:
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  • 11
    SMSBR é uma ferramenta para envio de mensagens SMS. O envio é realizado através do site da operadora telefônica, ou seja, vocę deve estar conectado ŕ internet para enviar mensagems.
    Downloads: 7 This Week
    Last Update:
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  • 12
    Bluetooth Instant Messenger Valhallachat
    Valhalla Chat is a Bluetooth Instant Messenger (IM), that provides a common messaging platform for mobile phones, desktop computers and pdas.
    Downloads: 6 This Week
    Last Update:
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  • 13
    Rockbochs PBX

    Rockbochs PBX

    Respins of various open source PBX projects

    This project serves to provide respins of some common open source PBX projects to include additional drivers, functionality, and software not found in the original projects.
    Downloads: 6 This Week
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    See Project
  • 14
    OpenGatekeeper is an Open Source H.323 Gatekeeper based on the work done by the OpenH323 project.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    PnP Server
    Plug and play provisioning server for snom VoIP phones written in Python. The server supports the plug and play provisioning feature embedded in snom phones of the snom 3xx, snom8xx and snom MeetingPoint series.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Software utility to receive CDR records from multiple Definity PBX by means of Reliable Transport Protocol.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    SIP Stack that is RFC 3261 compliant. Project has moved to http://www.resiprocate.org/
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    ARRIS Cloud Platform

    ARRIS Cloud Platform

    ARRIS Cloud Platform IaaS/PaaS Platform & Services

    ARRIS Cloud Platform (ACP) is a container-centric suite of common services for general use, such as a database server, log aggregator, and load balancer. Each service is HA and monitored, with an automated deployment process. Validation and testing of ACP is presently done primarily in VMware; however, ACP is designed to be agnostic to the virtualization infrastructure wherever possible.
    Downloads: 0 This Week
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  • 19
    Accent Tool Suite

    Accent Tool Suite

    Accent interfaces and controls systems through goals and policies

    Accent (Advanced Component Control Enhancing Network Technologies) is a comprehensive tool suite that interfaces a variety of communications systems and allows these systems to be controlled through goals (high-level user aims) and policies (lower-level system rules). Accent has been applied to the domains of: o Call Control: for telecommunications, particularly call control in Internet telephony o Home Care: for home automation and telecare, particularly for domestic appliances and devices to support home care o Sensor Networks: sensor networks, particularly managing wind farms However, the approach is generic and extensible for managing other kinds of systems. Accent is essentially software. As most of Accent in in Java, it needs at least a Java Runtime Environment but more likely a Java Software Development Kit. To interact with the real world, Accent needs relevant hardware such as a communications server (softswitch) or home automation equipment.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Asterisco Settings is a Webmin module to configure and manage Asterisk PBX
    Downloads: 0 This Week
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    See Project
  • 21
    Asterisk AD integration \ VQ monitoring
    The project is a preconfigured VoIP PBX VM Image based on Asterisk. But provides more advance features, such as LDAP integration, VQ monitoring via RTCP XR reports, LDAP user login, integrated billing system and telephone directory PDF generator.
    Downloads: 0 This Week
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  • 22
    Acv is a PHP program which allows you to monitor Asterisk servers by viewing active calls, channels, and overall server performance numbers.
    Downloads: 0 This Week
    Last Update:
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  • 23
    AMS is a suite of software intended to make day to day administration and monitoring of an Asterisk PBX server easier. It contains a daemon that acts as a proxy to Asterisk's Manger Interface and a GTK GUI application for monitoring and administration.
    Downloads: 0 This Week
    Last Update:
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  • 24
    Astmontray is a systray applet written in PyQt so users can monitor whether their PABX servers running Asterisk.org, the open source telephony platform, are up or not. It supports AMI authentication and runs fine on Linux, OSX and Maemo tablets.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    A C++ framework utilizing Design Patterns for creating Linux and Windows communications applications that contain Dialogic® products. Includes media and network classes (analog, digital, SIP, H323), multithreaded event handling, distributed app support.
    Downloads: 0 This Week
    Last Update:
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