AsteriskScripter

This Scripting package includes a scriptable Application called AsteriskScripter for use in AppleScripts or other applications.
Unlike similar apps you don't need to install any scripts on your Asterisk server. AsteriskScripter uses the ManagerAPI directly.
And best of all, it's free :-)
Two Example usages are included

• example Dialer AppleScript.
• dial out FileMaker example.
  A native FileMaker plugin is also available from Versiontracker or www.mezzo.net/asterisk

Requirements:

You need an Asterisk server. The universal binary Mac OS-X version of Asterisk is available from VersionTracker or www.mezzo.net/asterisk.
For the included FileMaker example you would need .FileMaker which is available from www.filemaker.com