Bishop, 30, is a former sixth-round pick of the Packers. He spent five years with Green Bay and helped them win a Super Bowl before he suffered a serious hamstring injury that cost him the 2012 season.
Bishop later caught on with the Vikings, but unfortunately suffered a torn ACL and was placed on season-ending injured reserve. The Cardinals signed him to a contract a few weeks ago and he managed to make through roster cuts, but was released soon after.
The Chiefs did bring him in for a visit last week.
The Falcons signed Angerer to a contract a little over a month ago, but he was unable to secure a roster spot.
Angerer, 27, was selected by the Colts in the second-round draft of the 2010 NFL Draft. Last year, he totaled 63 tackles, 0.5 sacks and an interception over the course of 11 games. Pro Football Focus had Angerer rates as the No. 36 inside linebacker in the league last season.