3 ms·
The same thing happens with a Motorola RAZR V3 GSM quad-band cell phone (a flip phone). I have that on video as well though I didn't upload it. I haven't tested
by alister 9y ago
The same thing happens with a Motorola RAZR V3 GSM quad-band cell phone (a flip phone). I have that on video as well though I didn't upload it. I haven't tested any other phones.
- post_break 9y agoProbably GSM. They do that, make interference before the phone rings. Put it by some computer speakers turned on full blast with no sound playing. You'll here the GSM morse code.