Duct cleaning, first time for a 613 number for me.  Why did I answer an "unavailable" call ID? (I guess because I thought the number was similar to that of a real human being, and not a telephone parasite).

Some kind of duct cleaning service. The man who had a heavy accent was John. refused to tell which number he dialed and hung up. Called back this number, recording says it's out of service.

Kept hanging up, leaving no message over several days. This darn system of listing my phone number on a do-not-call list seems to have had the opposite effect.

Someone has me on a do-call list somewhere and I challenge every telemarketer to tell me how they got my number. I get hung up on alot. Nice. They called MY home, not the other way around.

Call this number back, it says "no longer in service".
Talk about frustration.

I received so many calls from such numbers. I like to stop such unwanted call.