Hello,
Any one knows how to undelete deleted SMSs from SIM card. Here one institute teaching cyber investigation course in which thay are teaching all this.
I can measure output frequency of CDMA mobile/landline phone but I can not measure the output signals frequency of GSM mobile phone nor even my counter shows any signal strenght, why this happen since both are working between 800Mhz to 900Mhz. Any idea?
Mobile phone has radio Tx/Rx is it possible to use this module and can we communicate with each other like we use 434Mhz RF module?

Bye