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A subscriber identity module or subscriber identification module (SIM) is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) and the related key used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers). SIM cards are designed to be transferrable between different mobile devices. A SIM card contains its unique serial number (ICCID), international mobile subscriber identity (IMSI), security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to and two passwords: a personal identification number (PIN) for ordinary use and a personal unblocking code (PUK) for PIN unlocking.
An intelligent PBX solution using Iridium to operate as a telephone, Internet portal, GPS device and SMS terminal.
The MCG-101 provides the most powerful and versatile Iridium communications system to offices, remote locations, aircraft, and maritime. The system presents an intelligent solution using the Iridium satellite network to operate as a universal communications hub, low-bandwidth internet gateway, and intelligent GPS device, allowing you to send and receive data and voice, and also connect to other devices through RS232 and ethernet.
The MCG-101 was designed and built using 100% digital technology. This enables the system to provide clear, true to life audio, and eliminates any internal echo problems. For external interface portions of the system, such an analog POTS telephone, echo cancellation is performed by a hardware echo canceler.
The MCG-101 can be used in a number of scenarios for both stationary and mobile needs, from enabling remote command posts, providing redundant communications infrastructure for operations bases, to enabling voice and data communications within vehicles or vessels, regardless of proximity to standard systems and telecom towers.More