It's official, folks. Carl Icahn (or any investor for that matter) will not be able to acquire more than 20% of Nuance Communications' (NASDAQ:NUAN) common shares outstanding without permission from the board of directors. As a result, Carl Icahn's activist investing spirit could be considerably crimped. Currently, Icahn owns approximately 16% of the voice-recognition company.

Additionally, there has been some speculation surrounding Icahn's recent stake in Apple (NASDAQ:AAPL) and how he could be pushing for Apple to make a bid for Nuance.

In the following video, Fool contributor Steve Heller sits down with tech and telecom analysts Eric Bleeker and Jamal Carnette to discuss Nuance Communications' poison pill and any Apple-related rumors along the way.