Kamailio Alternatives
Kamailio is described as '® (successor of former OpenSER and SER) is an open source SIP server released under GPL, able to handle thousands of call setups per second. Among features: asynchronous TCP, UDP and SCTP, secure communication via TLS for VoIP (voice, video); WebSocket support for' and is an app in the social & communications category. There are more than 10 alternatives to Kamailio for a variety of platforms, including Linux, Windows, Mac, BSD and Self-Hosted apps. The best Kamailio alternative is Asterisk, which is both free and Open Source. Other great apps like Kamailio are 3CX, FreeSWITCH, FreePBX and Yate - Yet Another Telephony Engine.
Alternatives list
OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server. OpenSIPS is more than a SIP proxy/router as it includes application-level functionalities. OpenSIPS, as a SIP server, is the core component of any SIP-based VoIP solution.
Cost / License
- Free
- Open Source
Platforms
- Linux
Ozeki Phone System XE is a Software PBX telephony platform for Windows. Ozeki enables your applications to connect PBX and access IVR, Webphone, SMS sending, 3D video calls and other functionalities. It makes possible to use PHP VOIP, .
Cost / License
- Paid
- Proprietary
Platforms
- Windows


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A robust SIP/H.323/WebRTC softswitch for Windows with a long list of features including PBX and billing.
Cost / License
- Free
- Proprietary
Platforms
- Windows

IvozProvider supports multiple management levels, from Global platform administrator to final user, each of them having its own web interface with visibility to perform configuration tasks.
Vodia Phone app is a free add-on for your Vodia PBX that lets you connect to your account on your Vodia PBX. Starting with Android 5.0 Lollipop, based on the WebRTC technology.
Cost / License
- Free
- Proprietary
Platforms
- Android
- Chrome OS


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