Skype differs from other VoIP-systems by several factors:
Skype is very popular. During the first week in August of 2003, more than 60 thousand people downloaded the Skype-client. Today, Skype is available for the following operating systems: MS Windows, MacOS, IoS, PocketPC, Android and Linux.
Activabilling VoIP Solutions is offering free customization in any panel (upto 3 requests) to change or modify any feature in its Control Panels or IVR solutions.