FreeSWITCH vs Wazo Platform
FreeSWITCH
signalwire.com
Wazo Platform
wazo-platform.orgSide by side
| Figure | FreeSWITCH | Wazo Platform |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 1 |
| Spec score · Voice APIs | 8.0 (#10) | 8.2 (#7) |
| Spec score · Interactive Voice Response Software | 8.0 (#7) | 8.2 (#4) |
| Founded | 2006 | 2016 |
| Integrations | FreeSWITCH documents integrations through HTTP backends, embedded Lua, Perl, Python, JavaScript and Java, and SignalWire connectivity. | The maker says APIs can integrate third-party services, including billing capabilities, speech-to-text, AI, and sentiment analysis. |
| License | FreeSWITCH is open source under the MPL license and can be run in production at no cost. | The maker says the software may be copied, distributed, and modified, and GPL-licensed modifications must be made available under the GPL with build and installation instructions. |
| Purpose | FreeSWITCH is an open-source framework for real-time voice and video that can route calls, bridge video, transcode media, and connect protocols. | Wazo Platform is an open-source project for building carrier-grade programmable IP communication infrastructures. |
| Support | The open-source edition has community support, while SignalWire offers commercial support, hardened builds, and priority patches through FreeSWITCH Pro. | Wazo Platform is community supported through Mattermost, its forum, and JIRA bug tracking. |
Plans
FreeSWITCH
- FreeSWITCH Open SourceFree
- FreeSWITCH AdvantagePriced on request
- SignalWire PlatformPriced on request
In their own words
FreeSWITCH
FreeSWITCH is an open-source framework for real-time voice and video communications. It can route calls, bridge video, transcode media, and connect protocols, and is designed for use in carriers, contact centers, and communication products. Its Event Socket exposes call control, channel management, and internal events to external processes over TCP. Integrations include HTTP backends, embedded Lua, Perl, Python, JavaScript, Java, and SignalWire connectivity. The mod_signalwire module connects to SignalWire for inbound and outbound PSTN calling over a persistent WebSocket session. Linux installation guidance covers Debian and Ubuntu using SignalWire packages or a source build. A free SignalWire account is required to access packages and downloads. FreeSWITCH is licensed under MPL 2.0 and can run in production at no cost; self-hosting requires dedicated resources to maintain on-premises infrastructure. The open-source edition has community support, while FreeSWITCH Pro offers commercial support, hardened builds, priority patches, and commercial modules including answering machine detection and licensed G.729 Annex A encoding and decoding.
Wazo Platform
Wazo Platform is a free, open-source stack of telecom microservices for building programmable voice, video, messaging, and presence services. Its capabilities include audio and video calls, chat, call centers, conferences, voicemail, custom call routing, and an auto attendant. Interfaces include WebRTC, REST APIs, WebSockets, and Webhooks, described as mobile- and web-friendly. The microservices are developed in Python, and APIs are described through OpenAPI specifications. Asterisk, RTPEngine, and Kamailio make up the telecom engine; RabbitMQ, NGINX, and PostgreSQL support the technical core. Wazo can be deployed on bare metal, virtual machines, or containers. The documented all-in-one installation uses Debian 12 Bookworm and Ansible; minimums for a small production installation of about 50 users are 2 CPUs, 4 GiB RAM, and 50 GiB storage. The GPL-3 license allows free use, including commercial use. APIs can integrate billing and services such as speech-to-text, AI, or sentiment analysis. Community support is available through Mattermost, a forum, and JIRA.