Issabel 4 install. I noticed that the feature map of the Asterisk was almost empty, even transfer and other essential features with "blank" feature map codes at "features show" return. After some time I discovered that the parameter "parkedplay" at it's default value is causing the other feature code config files not to be read and executed. Just do a "module reload features" and see where the paremeter is. I removed and reloaded the features again and it worked just fine since I don't use parking.