There is provided pharmaceutical compositions for the treatment of e. The preferred embodiment supports an improved human interface and a continuous display of real-time stock quotes on the user’s computer screen. The controller configured to evaluate the one or more reception signals to determine if an error or malfunction exists in the switch. The user interface permits to set times necessary for the opening and closing of the aperture. The method for handling an audio messaging service AMS chat session between mobile communication apparatuses comprises steps for handling AMS chat sessions in the system.