Moore, 26, has 19 career receptions for 306 yards and two touchdowns.
He caught seven passes for 62 yards last season, one catch with the San Francisco 49ers in six games, and the other receptions in eight games for the Dolphins.
Moore went undrafted out of Fresno State.
Moore is an accomplished special-teams contributor.
Follow me on Twitter: @RavensInsider
Aaron Wilson covers the Ravens for The Baltimore Sun