Use Phone Button

When this button is activated, it is shown on the BP Master Data window. If you press the button, your default telephony client ("tel:" protocol) will appear and be ready to place a call to the phone number found in the field to the left of the button.

Furthermore, the phone numbers (except the fax number) of the contact persons can be activated by pressing CTRL + Double-click

NB: This feature is not available in SAP Browser Access