This was the number displayed for a text-to-voice service. My wife accidentally sent a text to our home number. The text is converted by computer to a voice message.

Silence caller. No idea who called.

Got a call today from this number. A girl with chinese accent told me that she was a Microsoft Certified Engeneer and that they had reports that I have problems with my computer. She asked me to boot my PC in order for her to show me the error messages. I refused.

Same call as K.  But I hung up because I do not respond to telemarketing, not because I couldn't use their services.

Got a call today from (613) 788-5121, when I answered no one spoke.  Tried calling the number back and it's always busy.

Got a call from this number 12:45 pm on 17 March 2012. No one on the other end.

Text message that followed the missed call from this number was offering unsolicited debt relief

I got a call from this number. A male voice with a Chinese accent was asking to talk to Peter. Then he was asking is that the number xxx.xxxx.xxxxx. When I told him that I don't answer this question to unidentified callers he became very rude starting to say: ba ba ba ba ba. So I hung up. What ever they are doing, they have very rude and unpolite callers.