The problem of sending short messages to Japanese mobile phones

Both the mobile phones I sent are Dokomo's, but he can receive them even if I send one directly. The number before 8 1 has 00 = "0081* * * * * *, and it seems that the other one cannot be sent directly. I didn't receive it every time, so I opened a 126. It may depend on the business opened by the other party. But it must be noted that if you are from China, you have to pronounce Pinyin, and if you are Japanese, you have to pronounce Roman characters. Otherwise, if you send Chinese, many words will become garbled.

I hope I can help you after making so many calls. O(∩_∩)O