SMS marketing services refer to the use of text messaging to promote a business, product or service. SMS marketing services providers offer businesses the ability to send promotional messages to their customers' mobile devices. These messages can include promotional offers, coupons, event invitations, reminders and more.

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SMS marketing is a highly effective way to reach customers, as most people carry their mobile phones with them all the times. SMS messages are also more likely to be read than emails, as they are typically delivered and read within minutes.