I just a call from this number..she called then hung up and called again,,
she knew my name..

ive been getting repeated calls from (514) 448-6020. This # always calls between 9 and 10:30 pm. I tried calling  back, but it's not an 'assigned' number.
Every time i pick up, i hear background noise and thats it.
i really have no clue!!!

I just a call from this number..she called then hung up and called again,,she knew my name..

Someone use my prepaid international card`s code. This code could only be stolen someway. I have used my card only at home and have saved the code only on my phone. When I checked my card`s calling record, I have found that some one has called from (514) 448-6020 phone number to Ethiopia many times, using my prepaid international card`s code.

(514) 448-6020 is the caller ID of people using SkypeOut (PC to phone). It's the reason of the background noise, lost lines, silent, etc...
Someone you know tries just to join you using Skype, it's the reason you can do a reverse call.