The disclosure provides methods and systems for warning users of mobile terminals during active phone calls or active data transfer that they approach certain geographical areas known as areas where active phone calls or active data transfer may be interrupted. In one embodiment, a method includes obtaining, by a processor, location information associated with a mobile terminal, determining, by the processor, that the mobile terminal approaches a particular geographical area, the particular geographical area being associated with previous dropped calls based at least in part on historical data, and, based on the determination, sending, by the processor, a warning signal to the mobile terminal for informing a user of the mobile terminal that the mobile terminal is about to enter the particular geographical area.