The Ezee3G software is licenced to a mobile SIM card, not a computer or a modem.
Once a SIM has been licenced it can be used in any modem, so long as the licence
key hasn’t expired. The Ezee3G software will run unlicenced, but periodically a nag
screen is displayed which will halt the issue of commands between the modem and the
To obtain licences for your SIM cards you must register first.