An apparatus for candling eggs includes a waterproof housing having a free end, a light source configured to emit visible light from the housing free end and illuminate an egg positioned adjacent to the housing free end, and a photodetector that generates an output signal corresponding to intensity of light from the light source leaving the egg. The one-to-many dispatch call is placed by sending a Request message 204 from a Personal Station PS 112 to a Control Center Station 120 which assigns a channel with an Assignment message 208. In one example, each gripper includes a sleeve within which the prongs are moveable so that the prongs are manipulated between the neutral, closed and released positions. The first switch and the second switch are controlled to open and close by a control clock of a predetermined period. In one instance, the GSLB switch places the address that is deemed \u201cbest\u201d at the top of the list. The illuminating device package includes an illuminating semiconductor device and a lens encapsulating the illuminating semiconductor device.