Reply To: NOKIA BTS THEORY 29th July 2009 at 09:29 #43636 PanGuest 🙂 Pix, your rating is bad. You didn’t pass testing. Try once again. Let’s, not prevaricate 🙂 Dear, PANKAJ SHARMA! May I, may I? A.6. In case of GPRS we use the GMSK modulation.