They said they were "I-Talk" a chinese phone company...I asked to speak to the manager and was told that I would be called back!
And the number...busy or not in service...

Got a call from this number.  Missed the call.  When I tried to callback, it was busy.  After reading all the comments, I'm glad I missed it! Thanks!

We just received a phone call from this number. The guy had an Indian accent and asked about duct service cleaning! When we tried to call back the number, it disconnected!

This number is from FreePhoneLine.ca and appears when the FreePhoneLine number is called by a caller that is blocking their ID.

That is...

1) "Bill" has a FreePhoneLine.ca (FPL) number which he can forward to any other number in Canada (like his cell)
2) "Jane" calls Bill's FPL number but she decides to block her number so that he doesn't know what number she is calling from
3) Bill receives an incoming call on his cell and sees (416) 642-0882 on his call display

Theibutler.com is who they claim to be. they wont stop calling and asking for information from me. They speak poor English (which is fine) but the line keeps on crackling and breaking up that I ?am unble to understand anything they say.

Got a call around 5pm, a woman was asking to speak to the owner of the house.Had to get her to repeat the question several times because the call quality was so poor.When I asked why she was calling, she wouldn't give me an answer. Just asked again to speak to the owner of the house.