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

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
    Start Free
  • 1
    Asterisk GUI client, VICIdial

    Asterisk GUI client, VICIdial

    VICIdial Contact Center Suite

    This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers.
    Leader badge
    Downloads: 94 This Week
    Last Update:
    See Project
  • 2
    YetiForce CRM

    YetiForce CRM

    The most affordable CRM system according to Capterra

    Are you looking for a system to boost your sales? Do you want to improve your relationships with customers? Do you want to contribute to the fastest growing open source project on GitHub? You can use YetiForce completely free of charge. With YetiForce’s help you will manage 12 business processes in your company, no matter the size. The vast number of features available for free helped us win the first place in Capterra’s “Most Affordable CRM Software” ranking. YetiForce’s open source code was released under a very flexible and liberal license, which gathers a large and active community around the project. You too can contribute to it no matter if you are a professional programmer or software development is just your hobby. Download YetiForce for free and find out why you should become one of more than 250 000 people who already use it. Testing versions: GitStable: https://gitstable.yetiforce.com/ GitDeveloper: https://gitdeveloper.yetiforce.com/
    Downloads: 21 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: 21 This Week
    Last Update:
    See Project
  • 4
    FMA is a SMS Manager, Mobile Phone Monitor, Remote Control Agent, Phonebook Manager, Organizer, Fun and much more; whatever you want it to be, it is whatever a mobile phone should have :-) (Currently based on Sony Ericsson features set).
    Downloads: 15 This Week
    Last Update:
    See Project
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 5
    OSDial

    OSDial

    OpenSource Call Center and Dialer System

    An Open Source (predictive) Dialer. OSDial is a full featured GPL dialer which does Manual, Power and Predictive dialing out of the box. Its easily installed through one of our .iso images. Install manual available at http://store.osdial.com/ Full details available at web site (http://osdial.com).
    Leader badge
    Downloads: 15 This Week
    Last Update:
    See Project
  • 6

    oreka

    Enterprise telephony recording and retrieval system

    Enterprise telephony recording and retrieval system with web based user interface. The project currently supports recording voice from VoIP SIP, Cisco Skinny (aka SCCP), raw RTP and audio sound device and runs on multiple operating systems and database systems. It can record audio from most PBX and telephony systems such as BroadWorks, Metaswitch, Asterisk, FreeSwitch, OpenSIPS, Avaya, Nortel, Mitel, Siemens, Cisco Call Manager, Cosmocom, NEC, etc... It is amongst others being used in Call Centers and Contact Centers for Quality monitoring (QM) purposes.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 7
    Activa brings the Asterisk IP PBX to the call center. Built on top of Asterisk, Activa components enable successful call center implementations adding value in areas such as computer telephony, screenpop&click2dial, agent control, automatic dialing...
    Leader badge
    Downloads: 3 This Week
    Last Update:
    See Project
  • 8
    Kablink
    Kablink open team collaboration software uses social networking to unify team workspaces w/ real-time web conferencing. Collaboration for knowledge networking, program management, communities-of-practice, telework, other business process/functional areas
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    The ATSlog software provides a handy web-oriented interface for collecting, viewing and analysing calls for various types of PBX (Private Branch eXchange) models.
    Downloads: 5 This Week
    Last Update:
    See Project
  • Build Securely on AWS with Proven Frameworks Icon
    Build Securely on AWS with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    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: 2 This Week
    Last Update:
    See Project
  • 11

    queXS

    Web based system for Computer Assisted Telephone Interviewing (CATI)

    queXS is a web based, Open Source, CATI (Computer Assisted Telephone Interviewing) System. queXS integrates with queXML for creating questionnaires, LimeSurvey for collecting data and Asterisk for VoIP telephony.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Scapegoat Software's Erlang B calculator is just that, an Erlang B calculator. It was written in Lazarus under Windows as a small project to have a simple standalone calculator for different telecom projects. We are releasing it under the GNU GPL 2.0.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    PHP based Web-App amied at managing call-centers Outbound campaigns. Customizable call results and phone interview using external XML file.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    Manages phonebook and SMS in your mobile phone (cellular) from your own computer. Allows a user to edit and retrieve phonebook in SIM card or memory, send SMS or group SMS and view your phone configurations. Supports all kind of phones; supports unicode.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    VOCP is a complete messaging solution for voice modems, with voicemail, fax, email pager, DTMF command shell and Text-to-Speech support, 3 GUIs and a web interface. Send and receive faxes and voicemail, listen to emails and execute programs on the host.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    asterCRM is a call center software for asterisk based VoIP system, also it has some CRM functions. It provide useful features such as pop-up, predictive dialer, click to call, extension status .... astercrm could work with all asterisk based system.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    dialDTMF is a library for dialing DTMF's (it is not a DTMF tone generator). An example usage of the library is included which is a Pocket Contact plugin to dial telephone numbers from a PDA running the Microsoft Pocket PC platform
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Next generation web-based, multi-tenant, distributed, mulit-lingual, inbound, outbound Video enabled VoIP & VVoIP call/ contact center solution for Asterisk with Built-in phone, IVR, CRM, Predictive dialer, ACD, Chat, Mail, Fax, Video and other features.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    911 Call Tracker is a Java app that tracks 911 phone calls. It provides detailed reports of: calls per operator/answer times, abandoned calls/ring times, calls over answer limit and more. Provides real-time access to call info,TDD,address, and cell info.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    A complete contact center solution for the Asterisk PBX, capable of handling inbound and outbound campaigns. Provides an agent toolbar for CTI. For managers an admin panel controls every aspect of the call center. Stunning historical and realtime stats.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    ACAT is a Web-based address and contact management system including a full user accountment written in PHP4. ...we also want to provide a collection of perl/java clients to guarantee fast access to the information stored in the database.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Android Birthday Reminder
    This android app reminds you about upcoming birthdays. You can read and write the date of birth of all contacts in your address book. This project moved to GitHub: https://github.com/sealor/BirthdayReminder
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Apreta is about sharing information in real-time meetings. It provides desktop sharing, presentation sharing, a shared whiteboard, and audio conferencing.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    This is a project to keep track assets via GSM, GPRS and GPS technologies.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Astercard is a asterisk addon that will enable an asterisk PBX to accept credit card payments over the telephone.The AGI script written in PHP that will process credit card payments with the EWAY payment gateway 30 downloads and no donations *DONATE NOW*
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • Next