导读：FreePBX 是一个最强大的 GUI（基于网页的）配置Asterisk 的工具。它提供标准传统电话系统能做的任何事，加入大量的新功能。 FreePBX本身支持了 ...

Open source PBX software that runs under Linux and other ... Supporting traditional telephony (TDM) as well as voice over IP (VoIP), Asterisk is written in C and uses the Unix standard POSIX ...

Built around the open-source Asterisk kernel, FreePBX is the world’s most popular open-source telephony ... quality – but also allows system administrators to manage call processing entirely from the ...