Administrator’s Guide for SIP-T58V/T58A/T56A/CP960 IP Phones
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You cannot preview local camera when the phone is idle
There is some dazzle light on the images when previewing the local camera
The wireless signal strength is low
The phone cannot connect to Bluetooth devices all the time
The Bluetooth headset affects IP phone’s voice quality
You cannot connect the IP phone to the 2.4G wireless network
Fail to upgrade the phone firmware
Verifying the firmware version
The IP phone does not update the configurations
Fail to export the system log to a provisioning server (FTP/TFTP server)
Fail to export the system log to a syslog server
Restore the administrator password
The web screen displays "Default password is in use. Please change!"
Both PoE cable and power adapter is connected to the phone
The difference among user name, register name and display name
The difference between RFC 2543 Hold enabled and disabled
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