He hasn't made a big impact since 2012, when he had 33 grabs for 453 yards and a touchdown with Kansas City. Moeaki and Tamme join
In Atlanta, Tamme joins a tight end group that includes Levine Toilolo and Mickey Shuler.
Tamme has spent the three previous seasons with the Broncos. His career numbers include 178 receptions for 1,703 yards and 10 touchdowns. The 30-year-old is entering his eighth season in the NFL.
Smith, a seventh-round selection by the Seahawks, was waived prior to the start of training camp in 2014.
Biermann, 29, has spent his entire seven-year career in Atlanta, registering 277 tackles and 21 sacks. He has played a full 16-game season six times, including last year.
New England Patriots Super Bowl XLIX Champs
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