Make 150-200 business calls to US companies (English)

It is necessary to make 150-200 business calls in English to American companies, to US numbers (you can use Skype, I will fill it up for you). The performer needs clear pronunciation and good knowledge of English to maintain a conversation with the company manager. What should be said? The main task is to announce to the manager of the company, or even better if it is a more important person of the company, our intention to offer our product for free in exchange for their feedback (the product is expensive and technological, so it may interest the person on the other end of the phone). I will provide more details in private messages.