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Project Description
CallButler is a 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.

Recommended Phone Service
We recommend the following Internet/VoIP phone service providers for CallButler:

logo.gif - http://www.callcentric.com

If 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

call_flow.jpg

test_drive.jpg

greeting.jpg

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.
Last edited Mon at 12:16 AM by Alphamacaroon, version 11
Comments
Also available: 2 reviews for current release.

khussain wrote  Aug 19 at 8:04 AM 
One of the Simple and best IP PBX.

Sean_Bda wrote  Sep 4 at 9:36 PM 
Extremely easy to use and keeps on working. Have it running on an older computer without a hitch for over 60 days now!

pstewart wrote  Sep 5 at 9:34 PM 
This is wonderful and It is about time the .Net community got something this great in open source community. I will say that I'm a little disappointed with the way some previous commercial users came on and started slamming the project in a since. That was not fair as this is an open source project and no longer a commercial product there is a difference and instead of being cold about it those same users can now participate to make it better for free. The .Net community was in need of a project like this as an example of the technology. CallButler does this cleanly. I thank telephony2 for releasing this into the community and everyone should too as they could have just let it catch dust in a folder somewhere.

Skywalker2001 wrote  Nov 11 at 8:04 PM 
Good evening ( I am based in Spain)
I would like to ask you a question about installing the Callbutler as every time I attempt to do so I get the following message:
Installer information
Service 'callButler Service' (CallButler Service) failed to start. Verify you have sufficient privileges to start system services.
I am logged in as Admin with full rights.
I Run a Pentium at 2.13Ghz 3..00 GB of Ram and a 320GB HD
OS Windows XP pro with SP3 installed.
Could you please tell me what is going wrong? Is this a common issue? I have seen another post with a similar complaint.
The installation process ends, and terminates.
Thanks in advance.
Kind regards,
Nicholas

brianmills wrote  Nov 13 at 10:37 AM 
We saw this when we installed this morning 0 first Open source version, whoohoo and thanks! We waited about 1 minute, clicked Retry and the service then started. Maybe the first time the service starts it needs a bit of time to set things up but the installer does not wait long enough?

Brian

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