Yealink SIP-T42G - Manual (Page 34)

User Guide for the SIP-T42G IP Phone
24
All Keys: All keys are locked, except the Volume, Headset,
Speakerphone and digit keys. You are only allowed to dial
emergency numbers, reject or answer incoming calls, and
cancel a call.
Note
To activate the keypad lock via phone user interface:
1. Press Menu->Settings->Advanced Settings (password: admin) ->Phone
Settings->Keypad Lock.
2. Press or , or the Switch soft key to select Enabled from the Keypad Lock
Enable field.
3. Press or , or the Switch soft key to select the desired type from the Keypad
Lock Type field.
4. Press the Save soft key to accept the change.
Long press to lock the keypad immediately when the phone is idle.
The LCD screen prompts “Keypad Locked!” and displays the icon .
You can configure the interval (in seconds) to automatically lock the keypad instead of
long pressing .
To configure the interval of automatic keypad lock via web user interface:
1. Click on Features->Phone Lock.
The emergency number setting, if desired, must be made before lock activation. For
more information, refer to Emergency Number on page 64 .