Yealink SIP-T42G - Manual (Page 33)

Customizing Your Phone
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4. Enter the new password again in the Confirm PWD field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Administrator password is configurable via web user interface at the path
Security->Password.
You can set the "#" or "*" to perform as a send key while dialing.
To configure key as send via phone user interface:
1. Press Menu->Features->Key as Send.
2. Press or , or the Switch soft key to select # or * from the Key as Send field,
or select Disable to disable this feature.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
Key as send is configurable via web user interface at the path Features->General
Information.
You can lock the keypad of your phone temporarily when you are not using it. This
feature helps to protect your phone from unauthorized use.
Keypad lock consists of the following:
Menu Key: The Menu soft key is locked. You cannot access the menu of the
phone until unlocked.
Function Keys: The function keys are locked. You cannot use the MESSAGE,
REDIAL, MUTE, OK, X, navigation keys, soft keys and line keys
until unlocked.