Methods and apparatuses to connect telephone calls and track information about the telephone calls resulting from advertisements on mobile/wireless media channels. In one embodiment, a method includes: assigning a telephone number to an advertiser, one of the telephone number and a reference to the telephone...http://www.google.ca/patents/US20050216341?utm_source=gb-gplus-sharePatent US20050216341 - Methods and apparatuses for pay-per-call advertising in mobile/wireless applications
