The 34-year-old played for the Panthers for 13 years before he was cut by the club and was signed by the Ravens last month.
Smith has insisted that he bares no ill-feeling toward the club as they have reshaped their offense allowing the majority of their receiving corps to leave Bank of America Stadium.
"Not that I'm upset, not that I'm mad. It's just the facts of the business," Smith told the Charlotte Observer.
"Who your current employer is does not eliminate or change the friendship and the camaraderie that you've built over the years. Just because we collect checks from different organisations doesn't mean that all of a sudden we cut each other off."
Smith recorded 64 receptions for 745 yards and four touchdowns in the 2013 season.