Overview How to Use a Socket Listening Device? 1 – First, you should get a new sim card for the operator you want to use, you can choose this card from the operator you want, Turkcell – Vodafone It does not matter whether the line you will get is postpaid or prepaid. 2 – The number of the line you will get should not be known by anyone. Because anyone who knows your number can listen to the environment where you left the socket listening device when they call that number. Therefore, it should be a new line that no one knows. 3 – Before connecting the line you bought to the Socket Listening Device, you should connect it to any phone and remove the pin code it asks when the phone is turned on. If the Pin Code query is not removed, your socket listening device will not work. 4 – After doing the first three items, unscrew the screws of the socket listening device you received with a Phillips or flat screwdriver and open the cover. After the socket cover is opened, insert your card into the slot where you can insert a sim card. Then close the screws and plug it into the socket. 5 – After plugging in the plug, call the number on the line you plugged into your plug-in listening device from your own phone, when you call, the device will ring 1-2 times like a normal phone and will automatically open and allow you to listen to the environment. NOTE: Turkcell Vodafone supports prepaid or postpaid lines, Avea Bimcell does not support these lines and does not work on these devices.