SMS, or mobile marketing, is an effective and personal way to reach customers, who can take advantage of an upgrade deal or signup coupon. Many telecom providers offer mobile promotions as it is a great way to engage with customers. Customers love mobile contests and coupons because they are simple. Usually all a customer has to do to enter a mobile contest or redeem a mobile coupon is enter a few numbers. Mobile marketing is an immediate and personal way of promoting your telecom company.