no message, called back to busy signal.  Second call in 2 weeks from this number.  annoying.

Hang up call because I did not pick up

They didn't leave a message.

got a call from this number too, no message and when i call back it is busy

These people keep calling me over and over. I've gotten five phone calls today from them with in minutes from one another. It's annoying. Haven't they figured it out that if I don't answer my phone, that's a sign that I'm not interested?