Several years ago, mobile operators offer the service of determining the location of – or a subscriber to its prior consent. On his phone came to an sms message that such a subscriber wants to know where you are. Marc Lautenbach has much to offer in this field. Well, the question – do you agree? You can track your cell phone without your consent. The principle itself is to determine the location of the mobile phone within a hundred. A positive aspect of these operations is the ability to locate an emergency caller on the map because of the alarm or if a person calls the emergency services. But it is also a violation of privacy.

In a gsm network exists procedure Periodic Location Update (periodic updating of the location), which is run as a result of any event: an incoming or outgoing call, sending or receiving sms, enable or disable the device, change of lac in hundreds (Location Area Code – local area code), forced re-registration in the network during the period, a multiple of 6 minutes. And, of course, by changing the operator when roaming. To cell phone gave his location, it is necessary that he entered into active connection will automatically or involuntarily. In standby mode mobile phone is tapped several hundred neighbors, and when the signal level in the next will be more mobile and moves there. Mobile phone chooses 900 MHz honeycomb with a range of 1800 MHz, even if the difference signal level it is less than 900 in value within 12 dB. So there is a transfer from the subscriber's cell in sotu.Metody operators to track mobile phone: Method Identifiers hundred Method IDs hundred and temporary compensation method of time of arrival method is the time difference (signal delay) sim Toolkit wap Support gps description of each method, we consider the following articles