Yes. If you open Settings, you will see the Swipe Actions. You can choose any of the options below for each of the left-to-right and right-to-left swipes:
- Archive conversation
- Delete conversation
- Mute conversation
- Mark as Read
- Mark as Unread
- BlockList
- Disable swipe
Other actions (such as "call") don't really make sense as a swipe action. When swiping something, you are removing it from the screen and getting rid of it. Swipe-to-call would go against this design principle.