A method for enabling one or both parties of a telephone call to view contents of a source computer via a computer network during the telephone call. The method includes the following steps: (1) associating a telephone number of a telephone line with a network address of the source computer; (2) retrieving the network address when a call is received by or placed on the telephone line; and (3) establishing a data session between the source computer and one or more display devices associated with the telephone line during which contents of the source computer are displayed on the display devices.