create a phone in matlab

main.m
% Create the main phone figure
phoneFig = uifigure('Name', 'Phone');
phoneFig.Position = [100 100 320 480];

% Create a call button
callButton = uibutton(phoneFig, 'push', 'Text', 'Call', 'Position', [125 240 70 70]);

% Create a hang up button
hangUpButton = uibutton(phoneFig, 'push', 'Text', 'Hang Up', 'Position', [125 240 70 70], 'Visible', 'off');

% Create a keypad
keypad = uigridlayout(phoneFig, [4 3]);
numButtons = cell(9,1);
for i = 1:9
    numButtons{i} = uibutton(keypad, 'push', 'Text', num2str(i), 'FontSize', 20);
end
starButton = uibutton(keypad, 'push', 'Text', '*', 'FontSize', 20);
zeroButton = uibutton(keypad, 'push', 'Text', '0', 'FontSize', 20);
poundButton = uibutton(keypad, 'push', 'Text', '#', 'FontSize', 20);
keypad.Padding = [5 5 5 5];
keypad.Spacing = [5 5];

% Add a callback function to the call button
callButton.ButtonPushedFcn = @(src,event) callNumber();

% Define the callback function for the call button
function callNumber()
    % Play a dial tone sound
    dialTone = dsp.SineWave('Amplitude',0.5,'Frequency',350,'SampleRate',8000);
    play(dialTone())
    
    % Show the hang up button and hide the call button
    hangUpButton.Visible = 'on';
    callButton.Visible = 'off';
end

% Add a callback function to the hang up button
hangUpButton.ButtonPushedFcn = @(src,event) hangUp();

% Define the callback function for the hang up button
function hangUp()
    % Play a busy signal sound
    busySignal = dsp.SineWave('Amplitude',0.5,'Frequency',[480 620],'SampleRate',8000);
    play(busySignal())
    
    % Hide the hang up button and show the call button
    hangUpButton.Visible = 'off';
    callButton.Visible = 'on';
end
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