SATTRANS raises the level of security for customers SATTRANS company brings in free telephone number in case of immediate messages about emergency situations or about threat of piracy attack at sea for the customers of Iridium system. All calls from the customers at any time of day or night will be linked to the U.K. Maritime Trade Operations (UKMTO) center. Calls are free. Short number is 9715, or full number - +971 50 552 3215. Calls are available from any Iridium SIM-card, including OpenPort.