Low-Cost International SIM Cards for Shipping Personnel
GeoSIM's Global SIM Card User GuideGeoSIM
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.