But the mobile phone is the serial number, and a number corresponding to each machine, the number does not repeat, through it can know what we buy is not "parallel." We can enter in standby mode: * # 06 # on the screen appeared the aircraft's serial number, and then open the back of the phone, remove battery, take a look at the inside of the machine serial number and serial number on the label is not match, if the match should contact your dealer. mobile phone jammer can work as long as the antenna is collectively connected.The use of mobile phones, we need to use the "#" key to confirm the password, as we in the query calls, you must enter the phone password, this time it is necessary to "#" key to exit. The phone's PIN, PIN2 password, SIM card password is usually the case ending with #. As some of the phone is no flip phone, so put it in your pocket when the house is likely to cause a particular object caused by exposure to auto answer the call. To avoid this from happening, a good way to lock the keypad. Siemens mobile phones such as the long press "#" key to lock the keyboard, the Motorola mobile phone while pressing the "" and "#" button. Most phones have a phone book for storing frequently used telephone numbers, each phone number will occupy a specific position.  Cellular Phone Jammer  has the complete frequency covering range and optional shielding range.
Sometimes we need to understand the specific location of the user stored in the who, the general situation is to enter the "Phone Book" menu, then select "search by location", enter the location, and finally be able to see. In fact, there is a very clever way, as long as we are in standby mode, enter a location number, such as 12, and then press the # key, the phone book there are 12 user names to appear on the screen, and then press call is to call the user. More than 200m away from the base station, the radius of covering range of cell phone jammer is 20-50m.