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The satellite phone networks Iridium, Thuraya and Inmarsat's BGAN also use SIM cards. Sometimes these SIM cards work in regular GSM phones and also allow GSM customers to roam in satellite networks by using their own SIM card in a satellite phone. Iridium is the world’s only truly global mobile communications company, with coverage of the entire Earth, including oceans, airways and Polar Regions. Iridium voice and data products provide communications solutions that allow global companies, government agencies and individuals to stay connected, everywhere. The unique Iridium constellation of 66 Low Earth Orbiting (LEO) cross-linked satellites routes communications traffic through space and around the world, creating highly efficient and reliable connections. Iridium delivers essential communication services to and from remote areas where terrestrial communications are not available. The Iridium Communication system needs a iridium sim card activate prepared before any communication or operation. The iridium sim card normally is not delivered together with the Iridium Communication Unit and should be ordered separately. The iridium sim card allows users to change satphones by simply removing the SIM card from one satphone and inserting it into another satphone or iridium broadband telephony device. A subscriber identity module or subscriber identification module (SIM) on a removable SIM card securely stores the IMSI used to identify a subscriber on telephony devices (such as mobile phones and computers). A SIM card contains its unique serial number, internationally unique number of the mobile user (IMSI), security authentication and ciphering information, temporary information related to the own network, a list of the services the user has access to and two passwords (PIN for usual use and PUK for unlocking). Iridium have prepaid plans and vouchers available from 25 minutes until 5000 minutes. Prepaid cards are the ideal solution for short or medium-term trips and seasonal users looking for great airtime rates. No contract, No monthly bill, the prepaid cards are the best choice for users who know how much time they need and strive to keep the communication cost under control. Among these plans the customer could find Regional and also Global Plans, some features that includes one flat rate for the entire worldwide coverage area. If the customer expect to use the Iridium services extensively is better to consider a 3.000 or 5.000 minutes iridium sim card with rates per minute approximately between 30%-40% lower. The most popular choice actually is the Global 500 min plan with 1 year of validity. For more information regarding Iridium Sim Card please visit www.prepaidsatphone.com
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