Ransom Canyon is a town in Lubbock County of West Texas, United States. The population was 1,011 at the 2000 census. It is part of the Lubbock Metropolitan Statistical Area. Ransom Canyon has some unusually designed homes, including the Lawson Rock House and the Steel House, both designed by Robert R. Bruno (1945-2008).
GSM (Global System for Mobile Communications, originally Groupe Special SpÃ©cial), mobile is a standard developed by The European Telecommunications Standards (INSTITUTE) etsi to describe the protocols for-second (GENERATION) 2g digital cellular networks used by mobile, phones first deployed In finland In july. 1991
Most of countries are covered with 3G network and 2G network. GSM means 2G. If the alarm system are supporting GSM900/1800/1900 MHz, then they can work in your place, even there is 3G network. For example: USA with 3G network, but GSM alarm system can still work in USA.The reason is USA with 2G network under the GSM frequency of 1900MHz.SM alarm not only can make a voice phone call, but also can send short message (SMS). In addition, GSM alarm system is suitable for the mobile situation (car, boat...etc). New GSM wireless alarm system.