Coupon campaign: let you upload a zip file that contain a large number of files e.g. if we have 1000 files wanted to be distributed to 1000 mobile handset uniquely i.e. allow each person to take file different than the other ( each one take unique file) i.e. if I made a zip file contain 1000 files named 1.gif till 1000.gif and choose coupon campaign then the device will attempt to send for an example: 1.txt once if it was successfully received 1.txt will be automatically disallowed to be sent again, the next attempt will take only files from 2.txt till 1000.txt. Users used to use this feature to send serial coupons to make sure that each person get a unique coupon different than others and to make sure there is no repeated coupon sending. To use this feature just upload a zip file contain the coupons.