Looking for Outbound telemarketeers in Mumbai/Bangalore/Pune

We run a website design firm in Canada and we are looking for someone or a call centre (preferrably in Mumbai, Bangalore or Pune) who will make outbound calls to a list of businesses here in Canada. You need to call them and ask if they have a website. If they dont have a website and are interested in getting one made for their business, you take their name, phone number and email address and pass the details to me. That would be considered as one 'lead'. Payment will be made according to the number of leads. Please bid how much you will charge per lead. Please also bid ONLY IF you can send me an audio sample of the caller who will make the outbound calls. We are looking for someone with good English skills. You only need a good computer and high speed internet. We will give you the softphone voip service software to download onto your computer and use to make the outbound calls. PAYMENT WILL BE MADE ONLY AFTER LEADS ARE VERIFIED AS GENUINE. NO PAYMENT before start of job.