The Titans signed Lauter to a contract Sunday, Jim Wyatt of the team's official site reports.
Lauter was waived by the Raiders in early May. The undrafted free agent out of Boise State was signed to fill a depth spot in the Titans' tight end corps that was vacated by Jaren Kanak (pectoral). Lauter's signing is a corresponding move to Kanak's placement on season-ending injured reserve, and he will likely only fulfill a meaningful role until the preseason concludes.