28% of the 500 contacts were converted into interview, exceeding initial expectations by exactly 100%. In spite of the pack's high impact, its low-cost design allowed a very low communications cost per sales call. This way, ROI has been very high, with a payback period ranging in only a few months. Concrete investment and margin data have been classified as confidential by Entel PCS. But, due to the effectiveness of the first wave, it is presently sending out a second wave to the rest of the 500 businesses. The results were so surprisingly high that the salesforce had to thouroughly rearrange its schedule according to this campaign.