Вопросы надо задавать не более одного за раз, на второй чаще всего не отвечают. Спрашивал про настройку звонка, но не получил ответа.
На импортном форуме писали на эту тему
Confirmed solution from HP forums:
Go to the Developers menu by...
a) Go to the menu by pressing the "Setup" button
b) Press and hold the "Up" arrow button
c) While the "Up" button is pressed, press the "Cancel" button.
d) Release both the buttons
e) Go to the menu again by pressing the "setup" button
f) See the item "developer's menu" available and Select this option.
2) Select Mercury ring by...
a) Go to the "R/W parameter" menu item
b) Look for "Ring Use Mercury" it's about 105 items away... (P.S. you may press "1" "0" "5" in sequence for quick access)
c) The default will be "0".
d) Changed this to "1" to activate Mercury Ring detection.
e) Reboot the system