Phone number to sat phone entered into your PLB registration record?

Any risk of it getting wet? Perhaps something water tight to put it into? Extra Battery?

A few things I do with my sat phone are program emergency contact numbers into the phone's phonebook and perform a monthly test call to make sure phone is in working order. Free Iridium test call number is: 1-480-752-5105. Check for and apply latest firmware update? I think the lastest is HT10017.