The SIM stores network state information, which is received from the Location Area Identity (LAI). Operator networks are divided into Location Areas, each having a unique LAI number. When the device changes locations, it stores the new LAI to the SIM and sends it back to the operator network with its new location.
Russia Technical Information - In Details. Russia Voltage. The voltage in Russia is 220 V which is the same voltage used in China, Greece, Russia, South Korea, and the United Arab Emirates. 220 V has an advantage over lower voltage such as the 110 V that it is cheaper to transmit.
The petroleum industry in Russia is one of the largest in the world. Russia has the largest reserves, and is the largest exporter, of natural gas. It has the second largest coal reserves, the eighth largest oil reserves, and is the largest producer of oil. It is the third largest energy user. Russia produced an average of 10.2 million barrels (1,620,000 m 3) of oil per day in 2010. It produces 12% of the world's oil and has a same share in global oil exports. In June 2006, Russian crude oil and condensate production reached to the post-Soviet maximum of 9.7 million barrels (1,540,000 m 3) per day.