Your phone can sound like a fart!
Upgrade to a buzzer instead of a bell
Instead of a regular ring, your special BatPhone can have a distinctive low-frequency raspy buzz, kind of like a Bronx Cheer (also known as an "unvoiced linguolabial trill," raspberry, razz or fart sound), that's sure to attract attention when an important call comes in. This price is in addition to the price of the phone, not for a buzzer purchased alone. The bell will be removed when the buzzer is installed.