Answer:
Business phone service
Explanation:
In simple words, Cold canvassing can be defined as the sales technique that involves contacting potential clients in the field with a sales pitch in order to generate new business. It's ideal for businesses like household contractors, who could find it simpler to contact new clients in person rather than through the telephone or over emails.
In the given case, telephone is used to aware target customers hence it is an example of business phone service.
