One way to do this is by phone cloning. Incoming messages can be intercepted, and outgoing ones can be sent as if from your own phone. Another way to intercept calls is by making copies of your SIM card. This is done through SIM readers that can read your cards crypto key. Then the SIM card is transferred to another phone. And the third option, which really isn’t an option, is to upload illegal firmware onto your phone.
From the experts, cellphone message interception can be possible through phone cloning. With this, incoming as well as sent messages will be sent to your phone it’s as if it’s intended for you. These can be done with the use of a sim reader which encrypts the sim card, and that can be transferred to other phones. This mimics the ability of radios to pick up signals enabling you to intercept messages.
In order to intercept cell phone text messages you have to download and install an interceptor program. The program is easy to run and once loaded will provide you with sent and received text message information. To view an intercept program, click here: http://www.howtocellphonespy.com/mobile-spy-software-reviews.