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.
LEAD TELECOM is a wholesale VoIP carrier incorporated in Miami (Florida), with headquarters in the state of Florida, and collocation facilities in New York – EQUINIX and Miami - NAP