If the russians could get the mother's phone numbers, why not the sons? If you're able to identify the location of call activity, why aren't you able to identify the cell while not on a call, when as far as I am aware there is still communication?
Maybe they couldn’t and just sent the SMS to a lot of random numbers. Those that belonged to mothers at the frontline naturally tried to call their sons.
Right. Still curious about monitoring cell activity only during calls. Thinking if you can monitor the cells, just look at the front line cells for comms.
I'm guessing: they needed a way to distinguish the troops from the civilians living in the area. By triggering a mass amount of calls to frontline soldiers, they made their positions light up in front of the overall background.
