7 self-hosted Bicom Systems PBXware alternatives

FreeSWITCH is an open-source software-defined telecom stack for building VoIP and real-time communication services with SIP and WebRTC support.

5k stars1.8k forkslast commit 17 Jul 2026Actively maintained

Open-source PBX and telephony toolkit for building communications applications; modular C-based engine with SIP, WebRTC, RTP, ARI/AMI APIs and hardware support.

3.4k stars1.3k forkslast commit 23 Jul 2026Actively maintained

Kamailio is an open source SIP signaling server for scalable VoIP and real-time communication platforms, supporting routing, load balancing, WebRTC, and IMS/VoLTE.

2.9k stars1.1k forkslast commit 27 Jul 2026Actively maintained

Routr is a programmable SIP server (proxy/registrar/location) for building scalable VoIP infrastructure with APIs, multi-tenancy, and Kubernetes-ready deployment.

1.7k stars179 forksMITlast commit 6 Jul 2026Actively maintained

FusionPBX is a domain-based, multi-tenant PBX and softswitch web UI for FreeSWITCH, supporting extensions, IVR, queues, voicemail, provisioning, and more.

1k stars776 forkslast commit 27 Jul 2026Actively maintained

Modular, PHP/JavaScript web GUI that configures and manages Asterisk PBX features, endpoints, and call routing for businesses and service providers.

Activity unknown

Carrier-grade VoIP softswitch/SBC for routing, billing, and managing SIP traffic, with LCR, fraud control, and high-availability deployment options.

Activity unknown