You can download CallButler 1.9.16 from our software library for free. Commonly, this program's installer has the following filenames: CallButler Service Manager.exe and WOSI.CallButler.Manager.exe etc. The following version: 1.9 is the most frequently downloaded one by the program users. The actual developer of the free program is Code Plex. The program belongs to Communication Tools. This download was scanned by our antivirus and was rated as malware free.
From the developer:
CallButler 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.
You may want to check out more software, such as MessengerAmp, Animated Messenger Emoticons or QuickWrite, which might be similar to CallButler.