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Chapter 11
Specify Your Network Settings
11. 1. USSD
USSD (Unstructured Supplementary Service Data) is used to communicate with the
service provider’s computer. You can query service data on this page.
Follow the steps below to get service data.
1. Visit http://tplinkmodem.net, and log in with the password you set for the router.
2. Go to Advanced > Network > USSD page.
3. Enter the USSD request and click Send. You will see the message returned from the
carrier in the USSD Result box.
11. 2. PIN Management
PIN (Personal Identification Number) is used to protect the SIM card from embezzlement.
PIN Management allows you to easily change the PIN settings of your SIM card as
needed.
Follow the steps below to change your PIN settings.
1. Visit http://tplinkmodem.net, and log in with the password you set for the router.
2. Go to Advanced > Network > PIN Management page.
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