One key criterion for provisioning is that the consumer opts into the service. The mobile operators demand a double opt in from the consumer and the ability for the consumer to opt out of the service at any time by sending the word STOP via SMS. These guidelines are established in the CTIA Playbook and the MMA Consumer Best Practices Guidelines[17] which are followed by all mobile marketers in the United States. In Canada, opt in will be mandatory once the Fighting Internet and Wireless Spam Act comes in force in mid-2012.
Grey Routing is a term given to messages that are sent to carriers (often offshore) that have low cost interconnect agreements with other carriers. Instead of sending the messages directly to the intended carrier, some bulk SMS providers send it to an offshore carrier, which will relay the message to the intended carrier. At the cost of consistency and reliability, this roundabout way is cheaper, and these routes can disappear without notice and are slower. Many carriers don’t like this type of routing, and will often block them with filters set up in their SMSCs.

Short codes are half the length of long codes, coming in at just 5 or 6 digits. Marketers prefer to use short codes for campaigns, since they lift response rates considerably and reduce the opportunity for entry errors. Short codes can be absorbed in a glance and typed in a flash, making them perfect for customer-initiated engagement. Yet, they’re not without their shortcomings. Dedicated short codes are more expensive and take much longer to setup. But they’re worth the investment if you’re launching an SMS marketing program or customer-initiated engagement channel.
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By now, you have a pretty clear idea of what you need to improve to reach your goal. But how are you going to do that? You need to form a hypothesis about what you think would work better than the message you have now. You may already have some ideas about things that might work based on previous experiences. Or you may have no idea where to start. You can start with evaluating some email/SMS marketing best practices and see whether these would fit for your business. You will only know whether these are suitable for you once you start testing, but it gives you a solid starting point. 


In order to gain their mobile number, they will have to have a great deal of trust in you and a pre-existing relationship will help. They also need to know that what you'll be sending them via SMS message is exclusive offers, not the same offer that you give via email and social media. Be clear with your customers and use the following guidelines when introducing SMS marketing to your customers:
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