Technical data

Code lock

You can use a PIN to prevent that unauthorised persons use your Retell 340. The PIN can be any 1-digit to 4-digit number. To

unlock the device, the PIN needs to be re-entered. In the factory pre-set, the PIN is “0000”.

Locking the device/change PIN

Press the menu button. The display shows the main menu.

Select the menu item “Code lock” using the arrow but-

tons (up/down).

Press the select button next to “Code lock”. The display shows the entry field for the PIN.

Use the arrow buttons (up/down) to enter the first digit

of the PIN.

The display shows the current setting.

Use the arrow buttons (left/right) to move to the next or

the earlier entry position.

The cursor is positioned on the selected entry position.

After having entered the PIN, press the select button

next to PIN

The display shows the select options “Lock device” or

“Change PIN”.