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GRP260x Administration Guide
Version 1.0.3.42
your audio is working fine. Press Return Softkey to exit audio loopback mode.
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Keypad/Led diagnosis
All LEDs will light up Press all the available keys on the phone. The LCD will
display the name for the keys to be pressed to finish the keyboard diagnostic
mode. Press Hook button to exit.
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Certification Verification
Verify the certificate loaded on the phone.
Reboot
Reboots the phone.
The following picture shows the keypad MENU configuration flow:
