This is the close-up photo of my cellphone. The upper light usually indicates the radio intensity; I can use the cellphone when it is green and cannot when red. It sometimes turns into blue with a chime and I become happy. What does it mean? The cellphone can use email and I have set a special email address on it. It is so special that even I don't remember it. I made a small program on my business server so that it can send a short message to my cellphone only when my client made a payment or inquiry. It is working as a signal of income for me and that's why I become happy with the light and chime. It is not only enjoyable for me but also it is very effective for my business because I can make a quick response to my clients. Of course, this kind of idea is not my original. When I was working for the ex-company, I was forced to carry a pager always with me and it sometimes went off notwithstanding day or night whenever troubles happened on the server. I hate the pager sound and felt it was like a dog collar, but now this sound I love to listen so much that I would be happy if it disturbed my sleep.
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