Some providers treat short codes differently than regular numbers, so here are measures you can take if you’re on one of the following and not receiving alerts (or your clients can take if they’re not receiving SMS reminders):
T-Mobile — By default, T-Mobile does not enable receipt of SMS’s from short codes, so contact T-Mobile and ask them to enable the receipt of SMS’s from short codes.
Sprint — Sprint will sometimes block short codes, so text “allow 36070″ to the number “9999″. You should then receive a response indicating you can now receive SMS’s from our short code.
Google Voice — Google Voice does not support the receipt of SMS’s from short codes, so you’ll need to use your actual mobile number for alerts from Full Slate. Please update your number under Account > My Profile and Setup > Staff.