TomTom GO User Manual page 11

Tap this button to call the location at the cursor position. This button is only
available if your GO has the phone number for the location.
The phone numbers of many POIs are stored in your GO. If you enter
Call
phone numbers for POIs that you create, you can also call them.
For more information about hands-free calling, see Hands-free calling on
page 40.
Tap this button to create a Favorite at the cursor position.
For more information about Favorites, see Favorites on page 29.
Add as
Favorite
Tap this button to create a POI at the cursor position.
For more information about POIs, see Points of Interest on page 32.
Add as POI
Tap this button to travel via the cursor position. This button is only available
if you are currently navigating to a destination.
Travel via...
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