How to model aTelephone case in SolidWorks

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Step 1:
Using Extrude command, extrude the side view.
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Step 2:
Now add necessary fillets and 'Shell' the feature upto 2 mm and remove the bottom face.
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Step 3:
On a plane constructed approx 40 mm above the top plane, sketch the buttons and "Cut Extrude" them all the way into the model.
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Step 4:
Now Sketch and Cut the speaker holes from the same plane.
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Step 5:
Lastly, using hole wizard make the speaker holes and pattern them along a circle.
Render the model and. enjoy...