when I answer the phone, no one speaks and then hangs up. very annoyed

These guys just called me. I said the only people who test the city water is the city of Mississauga.I said I work for the city and I asked the company name and then they hung up on me!.

This guy is selling duct cleaning now. Michael Hudson was the name he left but was an obvious alias.

yes!!!!!!! I got a call from these people too, but for air duct cleaning.  the man told me if I don't clean my ducts my family & pets will DIE from mites in the air ducts. WOW!!!  
They refused to give the company name & the indian man called from a private number. I had to pretend to be interested in the service to get a phone number. he still avoided telling me the company name. he told me his name was Mark Stephens, which was clearly wrong judging by the heavy pakistani accent.

Ph # (416) 800-0323

I think the same people called me for a promotion for a bell cell phone about 2-3 weeks ago.

they probably want to get credit card info to commit fraud and our personal i.d
to report them to the BBB, you'd need their company name/number which they don't give.

everyone use caution with any weird phone calls and emails for that matter when they will not give you their company name/number.  never give your i.d or address, name, banking or credit card info.

Whosoever is doing this is creating bad name for his country & it is annoying when you pick it in the middle of the night & no one Answers

I just called this # back. I got someone who answered with an east indian accent. He claimed to be an operator for some water company or something (hard to understand).I asked why someone calls me from that # and doesn't talk. I also mentioned some of the other stuff listed above by other people. He then hung up on me in mid sentence.I think I'm just gonna keep calling once in a while to bug them since they have done it to me so many times!!