Software	Description	More Info
Asterisk	softPBX for OS X and Linux	www.asterisk.org OS X Distribution VersionTracker Download of Sunrise Telecom's OS X Installer
Asterisk Applescripts	A collection of useful admin scripts for OS X users of Asterisk	via VersionTracker
Asterisk Management Portal	Web-based front-end for configuring the Asterisk softPBX	software/amp.php
Bitwise Chat	A cross-platform chat and IM client with voice chat capability	http://www.bitwiseim.com/
iChat	A/V Instant Messaging Client for OS X	www.apple.com/ichat
Jon's Phone Tool	A scriptable dialer that uses OS X address book; compatible with Vonage, CallVantage, X-Lite, and a host of other services & software.	Jon's Phone Tool Homepage
OhPhoneX / Xmeeting	H.323 Softphone for OS X	xmeeting.sourceforge.net/
Open H.323 Project	H.323 Environment for OS X and Linux	www.openh323.org
Phlink	Answering and desktop/telephony automation for OS X	www.ovolab.com
PhoneValet Message Center	Answering and desktop/telephony automation for OS X	www.parliant.com
SJPhone	Windows and Mac softphone that supports SIP and H.323	http://www.sjlabs.com/sjp.html
Skype	A/V Instant Messaging Client for OS X	www.skype.com
Teamspeex	A Mac OS X client for the Teamspeak multiplayer gaming voice communication system.	http://www.savvy.nl/blog/
Ventrilo	A Windows and Mac compatible multiplayer gaming voice communication system.	http://www.ventrilo.com/news.php?article=mac-232prototype6
X-Lite and X-Pro	Softphone for OS X	www.xten.com