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.
Telephony integrators and carriers building scalable VoIP infrastructure on Kubernetes or Docker.
routr.io does not publish flat monthly SaaS pricing for the open-source server itself.
Routr packages SIP routing and management tooling for teams replacing monolithic CPaaS with self-hosted, API-driven telephony.
What it can do
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| SIP core | Marketing describes a lightweight SIP proxy, registrar, and location server for carriers and integrators. | Facts sourced | 2026-10-04 |
| Control planes | Site lists command-line, REST API, and browser GUI management options. | Facts sourced | 2026-10-04 |
| Deployment | Docker images are tested with popular cloud providers for quick deployment. | Facts sourced | 2026-10-04 |
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.
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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.
Open-source Routr server and documentation are free to deploy; Fonoster positions it as an alternative to proprietary CPaaS platforms.. This record lists ongoing free access; check the plan limits before starting.
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Homepage states Routr can be controlled via a RESTful API alongside CLI and GUI tools.. API access and subscription access may have different terms; consult the linked sources.
routr.io does not publish flat monthly SaaS pricing for the open-source server itself.
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.