How does the SMS sign light up?

SMS Superman Monthly Rent 10 yuan. (Formerly 5 yuan) You can send short messages by SMS in QQ, and SMS Superman users can send their own short messages for free and unlimited. I applied for a text message on my mobile phone, Superman. After testing, I can only send short messages to my mobile phone, but I can't send them to Unicom and PHS. Based on this, it should be inferred that mobile can only be sent to mobile, and Unicom can only be sent to Unicom. You must install QQ on your computer to send it. The person who receives the text message can reply directly, and you can receive his reply in the text message. In other words, SMS Superman users can use QQ to chat with mobile phone users online. However, there is a charge for mobile phone users to reply, 0. 1 yuan/1. If you want your friends to reply free flowers by mobile phone, you can buy Tencent's "QQ for Mobile Phone" service at the price of 10 yuan/month. If you apply for SMS service, Superman can use QQ to send messages to other mobile phones, whether his mobile phone is bound to QQ or not. However, at present, you apply for SMS Superman through mobile, so you can only send it to mobile; Superman can only send text messages to Unicom. Another function of SMS Superman is to send offline messages to friends, that is, when you are not online, friends' messages can be sent to your mobile phone by SMS. According to this statement, if two people are bound to SMS Superman, they can contact each other with their mobile phones without surfing the Internet, and the number to send messages should be the number that Superman replies to each other. However, there is an extra charge of 0. 1 yuan for replying to Superman: (If mobile QQ is enabled, there is no extra charge. The relationship here is troublesome. In short, if two people only text Superman, it is better to contact each other directly by text message. However, if both of them have launched mobile QQ, they should be able to send messages to each other for free through Tencent QQ, but the stability cannot be guaranteed. If a person uses SMS Superman to send messages online and another mobile phone has applied, it still needs to pay for replying to the message. However, if the person who uses SMS Superman to send messages has turned on the mobile QQ, the person who replies to the message does not need to pay whether SMS Superman or mobile QQ is turned on or not. Binding a mobile phone has no practical use. When someone replies to your message on your mobile phone, you are not online, so the information will not be transmitted to your mobile phone. SMS Superman can. The server status is basically ok, and the other party can basically receive the message soon. But there are also few losses. The fly in the ointment is that the length of each message is less than 70 words, because your QQ information is attached to the message. With SMS Superman, you can send two 2×(70-N) SMS messages at a time, where n is the number of words occupied by your qq information, and the number of words varies from person to person. If there are more than these words at a time, the SMS will be sent in the form of MMS.