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This is more than a simple yes or no question because it depends upon the network you are using and the country in which you are located. Most GSM networks support the use of 112 as an emergency number. Then number does not connect you directly to the Police in most cases but instead to a switch board where they can arrange dispatch of emergency services as appropriate. The advantage of 112 is that, in most cases, it will use the best available service to ensure you get connected. See the link below for additional details: