A curated list of internet telephony resources and software
- microsip open source portable SIP softphone based on PJSIP stack for Windows OS
- Telephone MacOS SIP client
- baresip modular SIP User-Agent with audio and video support
- linphone-android Linphone.org mirror for linphone-android
- linphone-iphone Mirror of linphone-iphone
- Browser Phone A fully featured browser based WebRTC SIP phone for Asterisk
- Asterisk Official Asterisk PBX repository
- FreeSWITCH Software Defined Telecom Stack
- Kamailio Open Source SIP Server for large VoIP and real-time communication platforms
- Routr Routr: Next-generation SIP Server
- homer 100% Open-Source SIP / VoIP Packet Capture & Monitoring
- sngrep Ncurses SIP Messages flow viewer
- asterisklint Asterisk PBX configuration syntax checker
- sippts Set of tools to audit SIP based VoIP Systems
- Mr.SIP SIP-Based Audit and Attack Tool
- sipvicious SIPVicious OSS is a set of security tools that can be used to audit SIP based VoIP systems.
- soup SIP stress testing utility (call flooder)
- Asterisk Alpine Asterisk PBX in Docker on Alpine Linux.
- docker-freepbx Dockerized FreePBX 15 w/Asterisk 17, Seperate MySQL Database support, and Data Persistence and UCP
- freeswitch-container Dockerized FreeSWITCH instance
- Asterisk: The Definitive Guide, 5th Edition
- Hacking VoIP: Protocols, Attacks, and Countermeasures
- RTP: Audio and Video for the Internet
Contributions welcome! Read the contribution guidelines first.