GeoSIM's Global SIM Card User Guide08 May 2012 by GeoSIM
GeoSIM develops international SIM cards for use in the shipping industry, saving businesses and travellers up to 85% on their mobile phone charges when roaming overseas.
They have realeased a free user guide, advising on registration, set-up, using features, making calls and troubleshooting.
For more inofrmation please downlod this free white paper.
GeoSIM's Global SIM Card User Guide