Question
It seems like it does have potential considering I could hire an agency outside the us for $4 per hour and they could reach a lot of customers in a short amount of time. The problem is that people don't like telemarketers in the first place, so it could have negative effects.
The type of business is food delivery from restaurant's.
Answer
I agree with the comments posted here. I do not believe that telemarketers will get the call results you are looking for. I hardly ever answer the call when I get calls that I cannot identify. Telemarketers are not industry experts, do not have a relationship in your industry, and cannot create a positive message. Relationships and networks will get the job done. You should find a company that can make focused calls, is a "call consulting" firm and is aware of your industry and products.
Let us know if you like to discuss this further. We have an extensive domestic and international trade show background. We can schedule a call and go into more details.
Good luck!