You would also need to consult the Jeppy Text Manual for any country specific procedures or your company equivalent. The procedure to be adopted will also depend on which stage of flight you are in eg: missed approach, enroute etc. By following these procedures you will give a heads up to the radar controller to clear the airspace around you and avoid any surprises in case your transponder went down as well and he wasn't able to see your 7600 squawk.