Growth of calls by phone by 4 times

The B2C service. Since the main part of the requests received through phone calls for optimization was hidden the phone number on the site (click opening function). In the course of a month we have been able to collect sufficient statistics to optimize the advertising campaign. As a result, by more accurate targeting, the number of clicks on the phone number on the site was increased from 27 to 107. The number of orders by phone increased twice by four.