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Yealink T4U Series IP Phones User Guide
8
Connecting to the Wireless Network 109
Connecting to an Available Wireless Network Manually 109
Connecting to the Wireless Network Using WPS 109
Adding a Wireless Network Manually 110
Viewing the Wireless Network Information 110
Managing the Saved Wireless Network 111
Disconnecting the Wireless Network Connection 111
Deactivating the Wi-Fi Mode 112
Expansion Module and Your Phone 112
Connecting the Expansion Module 112
Assigning the Features for Ext Keys 112
Adjusting the Backlight of the Expansion Module 112
Maintaining Your Phone 113
Warnings 113
Investigating Warnings 113
Re-provisioning Your Phone 113
Clearing Warnings 114
Diagnosing the Network 114
Rebooting Your Phone 114
Resetting to Factory Settings 114
Updating the Phone Configuration 115
Clearing User's Personalized Configuration Settings 115
Appendix - Menu Structure 117
For the T48U Phone 117
For the T46U Phone 118
For the T43U/T42U Phone 119
9


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