Abstract: A method for identifying a message selection made at a mobile station (MS), the method including the steps of uniquely associating an inbound telephone number with a message, attaching the inbound telephone number to the message, sending the message and the attached inbound telephone number to an MS using an MS telephone number associated with the MS, maintaining a unique association between the message, the inbound telephone number, and the MS telephone number, selecting the message at the MS, calling from the MS the inbound telephone number attached to the selected message, identifying the inbound telephone number of the telephone call, identifying the MS telephone number of the telephone call, and identifying the message associated with the inbound telephone number and the MS telephone number, thereby identifying the message selection made at the MS.