Electronic consent for telemarketing calls can be obtained by soliciting consent from an individual using two-dimensional barcodes, such as quick response (“QR”) codes. The QR code can be printed on an advertisement and read by a smart phone. The reading of the QR code causes communication to be originated from the individual's smart phone for the purpose of requesting the individual to be contacted for a particular purpose. The communication can be construed by the enterprise as providing electronic consent for the enterprise to contact the individual with a subsequent telemarketing call. The sender's telephone number and other relevant information can be stored in an electronic consent database used to ensure compliance with appropriate marketing regulations.