Access denied when obtaining namespace connection time

Question

I am developing an application for the Windows Phone and I’m wearing a namespace who makes the connection. The problem is that this namespace says that it has no access to the appeal, and that the declaration of the appeal was made in the manifest of aplicação.
And it’s not the namespace Windows.Phone.Task, because this does not solve my problem, since I want to get the connection time. This namespace that I’m using says my access is denied.

Answer 1

Are you developing for Windows Phone 8.1? If yes, Voce can use the Windows.ApplicationModel.Calls namespace (MSDN Ref).

Example:

Windows.ApplicationModel.Calls.PhoneCallManager.ShowPhoneCallUI("Telefone", "Nome Usuario");

If you’re developing for Windows Phone 8, use Phonecalltask (MSDN Ref):

    PhoneCallTask phoneCallTask = new PhoneCallTask();
    phoneCallTask.PhoneNumber = "Telefone";
    phoneCallTask.DisplayName = "Nome Usuario";
    phoneCallTask.Show();