He was scheduled to become an unrestricted free agent Feb. 29.
In 2007, Gage's fifth NFL season and first with the Titans, he led the team with 750 receiving yards and tied Roydell Williams for most receptions with 55.
In 65 career games, Gage has 119 receptions for 1,658 yards and six touchdowns. He formerly played for Chicago.
Meanwhile, free agent Alge Crumpler visited Wednesday in Nashville with Titans' officials. Crumpler and his agent had met earlier with team officials at the NFL combine.
Crumpler, cut by the Falcons on Feb. 15, made the Pro Bowl from 2003-06. He was plagued by knee problems last season.