Vindurem Incorporated has developed a software that would reduce the time taken by manufacturers to identify suppliers of raw materials and distributors of finished goods for a particular region. The company assigns its sales team to call on all potential customers that exist within a two-mile radius of the city's shipping port to market this new software. The company conducts this cold calling for a period of two days. This type of cold canvassing is called

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.