Called my mobile phone numerous times (sometimes back to back) without leaving a message. My mobile has a (310) area code but I'm in San Francisco so I never answer unknown numbers from LA (since I'm not in that geographic area).
Received a call from this #, I didn't answer, they left no message. I called it back, Rings 1+1/2 times, then typical waiting music starts playing. I stayed on line 20 MINUTES, and every 3 minutes it would say, "waiting times is about 10 minutes". So, true junk of a call.