The Falcons signed Dortch to a reserve/future contract Monday, Will McFadden of the team's official site reports.
Dortch had a spot on Atlanta's practice squad all year but didn't play a game. The 5-foot-7, 173-pound wideout contributed as a returner for the Panthers in two games during the 2019 season. The 22-year-old could aim for a similar role with the Falcons in 2021.