Who called from 6502151185

unknown caller

5am. No message.

Had missed call from this number (rang once).  Just tried ringing back and got "your call cannot be completed as dialled.

Rec'd call from foreign sounding female asking for my boss.  When I asked who was calling, she gave me her name (duh), when I ask who she was with she proceeded to say her boss asked her to get my boss on line 1 and transfer the call to him.  I asked her what her call was regarding and she said it was her 2nd day on the job and she did not know...I said, I'm sorry I can't connect you and hung up.

Called back hoping for an option to be removed from their calling list, but as mentioned above, the number could not be completed..."as dialed".....