What I like the most is that Vicidial is perhaps one of the most complete programs for the management of a CallCenter with OpenSource license. It allows managing incoming calls / campaigns and outgoing calls / campaigns; As PBX uses Asterisk (version 1.8.X). Vicibox is the version of Vicidial that comes in an ISO. The latest version available is 6.0.4 and installation on a Vultr VPS of 8GB of RAM, 4 vCPU and 150GB hard drive. With this type of configuration, according to the document that accompanies the ISO, we can use a maximum of 15 Agents in outgoing call campaigns or 25 Agents in incoming call campaigns. Vicidial can also be installed in a group of servers composed of 4 machines: Database, Web part, Asterisk PBX, Server to archive calls recordings.

Its simple to understand and use. The interface is very user friendly and almost self explanatory. It also allows my calls at work to be easily listened in on and finding others in the network is quite easy as well.

I have used this software on 4 different deployments for nearly two years now. I love it because its free, stable, reliable and extremely flexible to build new features on top of existing tons of features.