The contest task is close to completion. The overall quality level of the implemented features is acceptable, however, there is still room for improvement.

We have identified the following issues which prevented the submission from getting a higher score:
– The incoming call screen buttons are misplaced.
– The app does not properly animate the call state while it is being initiated.
– The waves animation does not follow the provided design guidelines.
– The Interface buttons are not properly animated.
– The app does not switch the call interface to idle as requested per the contest task.

Additionally, the app is affected with these deficiencies:
– Improper animation when expanding the encryption key layer.
– The waves animation could blink while the encryption key layer is being expanded – if a call partner has no profile photo.
– Incorrect tooltip animation when the mic is disabled. 
– The output select button is incorrectly shown at the top right corner.
– The design for video call related buttons is not consistent with the provided guidelines.