Compare software

OpenSIPS vs Routr: catalog facts
OpenSIPS	Routr
Free Free and open source; paid training courses are offered separately.	Free Free and open source under the MIT licence.
Linux, Self-hosted	Self-hosted, Command line
Handles high SIP traffic volumes Covers many roles from PBX to load balancer	Ready for Docker and Kubernetes deployments Managed via CLI, REST API or web interface
Steep learning curve, aimed at telecom engineers Signaling server only, not an end-user calling app	Aimed at carriers and integrators rather than home users Requires SIP knowledge to configure
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License: GPL-2.0	License: MIT
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.