Scalable open source cross-platform telephony platform. ([Source Code](https://github.com/signalwire/freeswitch)) `MPL-2.0` `C`
signalwire.com
Alternatives to
Kamailio
Best alternatives to Kamailio in 2026
Kamailio is "Modular SIP server (registrar/proxy/router/etc). ([Source Code](https://github.com/kamailio/kamailio)) `GPL-2.0` `C/deb`". If you are looking for an alternative to Kamailio in 2026 — whether for pricing, features or compatibility reasons — mySelectas has curated the 12 best options available. The most popular alternatives include: Asterisk, FreeSWITCH. All these solutions are listed in the Informatique category.
Quick comparison of Kamailio alternatives
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FAQ about Kamailio alternatives
- What is the best alternative to Kamailio in 2026?
- Based on our selection, FreeSWITCH is the best alternative to Kamailio in 2026. Scalable open source cross-platform telephony platform. ([Source Code](https://github.com/signalwire/freeswitch)) `MPL-2.0` `C`. See our full ranking above to compare all options.
- Is Kamailio free?
- Kamailio is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Kamailio are there?
- mySelectas has listed 12 alternatives to Kamailio in the Informatique category. Our selection is updated regularly to include the best options available.