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6.2  Set the message center number 
Message center is the short message server for SMS messages. You will be unable to send SMS 
messages with a wrong message center number. 
The router can automatically detect the message center number after you insert a SIM card. If you 
have problems in sending SMS messages, you are recommended to inquire your ISP for the 
message center number and change it in the web UI of the router if it is wrong. 
Configuring procedure: 
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 > Message Center. 
Step 3  Enable Message Center. 
Step 4  Enter the correct Message Center Number. 
Step 5  Click Save. 
 
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Contact your ISP for correct message center number.