| 摘要 |
<p>Advertisers submit advertising campaigns to a call advertising system, each campaign including a telephone number associated with the advertiser and an amount per call that the advertiser is willing to pay to receive calls from users at the advertised telephone number. When an advertised telephone number is contained in content that is displayed on a computing device of a user, or when a user enters a telephone number that corresponds with the advertised telephone number, the computing device highlights the advertised telephone number to indicate to the user that the call can be made at a free or reduced rate to what a user would normally pay in order to make such a call. If the user initiates a call to the advertised telephone number, the call is routed to the advertiser and the advertiser is charged the amount that they agreed to pay to receive the call.</p> |
