As I told you before and it is seen in the video, you have to turn up the volume in the audio panel of the A320, in addition to that you have to press the button to turn blue, an indication that confirms that comunication are on, next to that you have to have the "call" button of the com1 activated. I can make a video for you to see more clearly. If it doesn't work, you might have the ATC voices disabled, that's what you need to set up in the user's help pane. Regarding the IFR clarence of the ATC unfortunately it is not possible to request it after filling out the flight plan in the MCDU as in other aircraft, I hope the Inibuilds team will fix it.