A technique is disclosed that enables a voice call to be initiated on the Public Switched Telephone Network (311) and directed to a VoIP telephone (303) on the Internet without the association of a unique telephone number to the VoIP telephone. In accordance with the illustrative embodiment of the present invention, a user who has a PSTN wireline telephone (302) or a PSTN cell phone associates his or her VoIP telephone (303) with the telephone number of the PSTN wireline telephone (302) or the PSTN cell phone or with both numbers. In other words, the VoIP telephone (303) is not assigned its own telephone number but shares the telephone number of the PSTN telephones (302) of its owner.