Unhiding a view is very slow in CTCallCenter callEventHandler

Question

Reposting with more concise and focused question after original question went unanswered. Also adding more insight into the problem after another day of research:

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Answer 1

djibouti33,

Where you put this sentence to listen when a user taps a button that dials a phone number?on WillResignActive function?

this sentence --> [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ctCallStateDidChange:) name:@"CTCallStateDidChange" object:nil];

Thanks for your time,

Willy.