They started calling a few days ago, and have called three times already today, they let it ring 3 times then hang up, when I tried to call it back it made a quick busy signal like it was a not working number, my caller id said pulse 1, what is that?
'Pulse 1' calls several times a day. Previously, when we answered there was no response. When we dialed the number, there was a busy signal. With Caller ID, we don't answer the phone when we see that it's 'Pulse 1'. They also use different numbers. Who or what are they????!!!!!