Browse free open source PBX software and projects for BSD below. Use the toggles on the left to filter open source PBX software by OS, license, language, programming language, and project status.
Unified Communications Server
VICIdial Contact Center Suite
The most affordable CRM system according to Capterra
A domain based multi-tenant PBX & voice switch for FreeSWITCH
Enterprise telephony recording and retrieval system
Project about FusionPBX on Live Medium
CRM system based on vtiger, adapted to Polish companies.