Simple Steps to Set Up iPhone Recurring Messages AlertStep 1. Enter "Notification" list
On your iPhone 6, tap "Settings" > "Notificication" as the below screenshot shows.
Step 2. Set up repeat alerts for your iPhone
After that, choose the "Messages" option and then in the next screen, scroll down to the bottom to tap on "Repeat Alert". Then, you are enabled to choose the frequency of the repeat alerts.
Note: You are allowed to choose a repeat alerts frequency for 10 times at most.
If you choose a 10 times repeat alerts, once there is a new message on your iPhone 6, you will be informed for 10 times every two minutes. It will reduce the rate for you to missing some important messages to some extent. If you have other problem on using iPhone, please feel free to discuss it with us.