A telephone calling interface is disclosed. The telephone calling interface may be implemented as a toolbar within an Internet web browser. The toolbar may identify telephone numbers included in a web page requested by a user of the Internet web browser and conspicuously display the identified telephone numbers when the web page is displayed. The toolbar may recognize activation by the user of one of the conspicuously displayed identified telephone numbers included in the web page as an activated telephone number and initiate a telephone call between a predefined telephone number and the activated telephone number. The method may be executed on a computing device such as, for example, a personal computer.