outsourcing telemarketing

Hi guys

Has anyone here outsourced telemarketing to the phillipines through odesk?

I need someone to call businesses and ask them to become a member of one of my websites. the site is a directory, kind of like yelp. yeah, I know I will never be as big as yelp, and i may even fail, but its better to try and fail than not try at all, right?

so my questions are, how much money am I looking at? I would imagine they charge by the hour, right? or do they charge per call made?
what about long distance charges? or maybe they could use google voice?
I just need a breakdown of what fees I should expect.

Do some research and stop asking to be spoon fed.

They like to charge per hour, and should use Skype to call.

I do my hiring a little different than others. When a telemarketer calls me, I hire them to telemarket for double their current wage, if they appear good of course, with minimal accent, etc.

The best employees will be the ones that are working and calling you right now.