Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to, ect.
modify phone state
Allows the application to control the phone features of the device. An application with this permission can switch networks, turn the phone radio on and off and the like without ever notifying you.
intercept outgoing calls
Allows application to process outgoing calls and change the number to be dialed. Malicious applications may monitor, redirect, or prevent outgoing calls.
change your audio settings
Allows application to modify global audio settings such as volume and routing.