Project DescriptionCallButler is a FREE Windows-based open source PBX, IVR and Auto-Attendant Phone System built on .NET. It was a commercially available product, but is now being put into Open Source.
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Recommended Phone ServiceWe recommend the following Internet/VoIP phone service providers for CallButler:

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http://www.callcentric.com
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http://www.voicemeup.comIf you would like your VoIP business listed here, please send us an Email and let us know.
Features
- PBX
- Auto-Attendant
- IVR
- Voicemail
- Music On Hold
- Text to Speech
- Find Me/Follow Me
- Call Forwarding/Transfer
- Call Recording
- Conferencing
- Call Personalization
- Unified Messaging
- Windows Based
- Outlook Integration
- CRM/SFA/ERP/Database Integration
- 10 Minute Setup
Screenshots

Compilation/Debugging Notes
- Requires VS.NET 2005 (with SP1)
- In order to debug CallButler in VS.NET you'll need to start the CallButler Service.exe with the command line argument, "-a" (without the quotes). This will start CallButler as a desktop application as opposed to a Windows Service. You can specify command line arguments in the Properties for the CallButler Service project.
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