Iphone SMS reminder settings

First find "Settings" in your mobile phone, as shown in the figure below.

Click Open Settings and find "Notice", as shown in the red box below.

Click to open "Notification", slide your finger down and find "Information" in the list of "Notification Center", as shown in the red box below.

Click to open "Information" and slide your finger down to find "Repeated Reminder", as shown in the red box below.

Click "Repeat Reminder" to view the number of current SMS reminders. You can set it not to remind, or set it to 1, 2, 3, 5, 10 times.

Finally, according to your own needs, set the corresponding number of repeated reminders.