Voice · Vendor site 2026-10-04
Routr is an open-source, cloud-native SIP server and programmable telephony stack from Fonoster with Docker and Kubernetes deployment paths. It provides SIP proxy, registrar, and location services controllable via CLI, REST API, or a web GUI for carriers and CPaaS builders.
Understand the total cost
Free
Free
Open-source Routr server and documentation are free to deploy; Fonoster positions it as an alternative to proprietary CPaaS platforms.
No retained pricing changes yet. A current price alone does not establish a historical trend.
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.
Yes. Routr has an ongoing free plan. Open-source Routr server and documentation are free to deploy; Fonoster positions it as an alternative to proprietary CPaaS platforms.
Routr is listed as free. No paid plan with a published price was found.
API or developer access is mentioned. Homepage states Routr can be controlled via a RESTful API alongside CLI and GUI tools.