Mercy Ships is a nonprofit organization operating medical relief ships that travel to the poorest countries of the world to perform medical services and community development programs. In order to serve such communities, the ships have three basic requirements: a place to dock, fresh water and telephone access. In these poor countries, it is very common to have a wired public phone system that is very old, overloaded, and not readily available at the dockside. However, GSM cellular service is generally available in the port area, so finding a way to use that cellular service has been a must for Mercy Ships. In their quest to access the GSM cellular service…