The red phone icon end call button is not working. I cant hang up... Any thoughts?

[AC Question]

I can use the keypad to type in a number and make outgoing calls by hitting the green phone icon but when I'm finished the red phone icon is not working. I cannot hangup...

 

[Javier P]

Does the problem persists after you reboot your phone? Also, go to settings - accessibility and make sure that the "power button ends call" option is unchecked.