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6.1.2  Delete SMS messages 
Delete all messages of the same phone numbers 
Step 1  Start a web browser on a device connected to the router and visit tendawifi.com to log in 
to the web UI of the router. 
Step 2  Choose SMS > Messages. 
Step 3  Click Edit on the top right corner. 
 
Step 4  Select one or more phone number to be deleted. 
Step 5  Click   (click Done to cancel). 
 
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Delete certain messages of the same phone number 
Step 1  Start a web browser on a device connected to the router and visit tendawifi.com to log in 
to the web UI of the router. 
Step 2  Choose SMS > Messages. 
Step 3  Click the targeted phone number.