MacOS X and Darwin
MacOS X is Apple Computer Inc's operating system, powered by a BSD subsystem called Darwin.
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Open standards based SIP VoIP technologies available on MacOSX
- Asterisk - the open source PBX and multi-protocol VoIP server
- iaxComm - the open source IAX softphone
- ZoIPer - Multiplatform IAX soft phone (universal binary) (formerly Idefisk)
- JackenIAX - IAX Soft Phone for Mac OS X.
- LoudHush - nagware IAX softphone for OS X
- SJphone - SJlabs' H.323 and SIP softphone
- X-Lite - Xten's SIP softphone (note: crashes after every call under Intel, no plans to fix)
- Xmeeting - H323/SIP Audio Video Max OSX client , universal binairies.
see also
- Setting up Asterisk/Macintalk/tftp on a Mac Mini - Collected from many sources across the net.
- Asterisk for MacOS X - MacOS X specific distribution, now being replaced by Afelio
Proprietary non-standard VoIP technologies available on MacOSX
- iChat AV - Apple's proprietary non-standard audio and video chat client
- Internet Phone - Empower Pro Phone's proprietary non-standard softphone
- KDX - Haxial's KDX with built-in proprietary non-standard softphone
- SquidCam - SquidSoft's proprietary non-standard audio and video softphone
- Skype - Skype is a soft phone only based application & service for calling other people on their computers for free or POTS phone for a charge
Database integration with Asterisk under MacOSX
- Asterisk and OS X and Database Integration - A walkthru guide for setting up Database integration under OS X
Important Note: This page was made using a MacOS X "Panther" and Darwin 7.4.0. If you want to edit this page, you must do so using MacOS X or we will lose the right to display Apple's logos on this page according to Apple's logo usage guidelines.
MacOS X and Darwin are trademarks of Apple Computer Inc.

Comments
333Parent link is misleading
333OhphoneX?
ohphoneX is a open H.323 product based in the OpenH323 Project.
333Skype?
What about Skype for MacOS X as another proprietary product?
See http://www.skype.com/products/skype/macosx/ for more info.