Calling card has been in the VoIP industry for many years and it has proven its worth as one of the leading and fastest growing businesses. From an established VoIP business owner to a newbie interested in entering the VoIP industry can launch a successful business and generate an inflow of revenues. Whether you want to put your stepping stone in the VoIP industry or you want to put more eggs in your basket of revenue generation channels, launching a calling card business can really be the right decision and action. Webinar video: https://youtu.be/pbkSr2mXx7Q