The Panthers signed Franks to the 53-man roster from the practice squad Tuesday, Darin Gantt of the team's official site reports.
Franks only played one offensive snap during Sunday's 26-3 loss to the Chargers due to starting tight end Tommy Tremble ultimately being active. With Ian Thomas (calf) on IR until early October at the earliest, and Jordan Matthews being released, Franks will get a chance to continue holding down a depth role for Carolina.