OpenPBX (Disambiguation)

There are at least three uses of the name "OpenPBX" in relation to telephony:

• OpenPBX - an open source software-PBX written in Perl, by Australian vendor Voicetronix
• CallWeaver - The old name for a vendor independent, cross-platform open source software-PBX, originally derived from Asterisk, the current name is CallWeaver
• OpenPBX VXM - a Windows based voicemail system by Chips & Dale Communications for use with conventional PBXes

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Legal Disclaimer
OpenPBX is an Australian common law trademark by Voicetronix.
CallWeaver is a US registerered trademark for the CallWeaver project.
OpenPBX VXM is a US common law trademark by Chips & Dale Communications.