You are talking about SMS linking to QQ, which is Super QQ, 10 yuan per month.
How to use:
1. Super QQ reminds you: Send Q to 10661700 at any time to get the main menu of Super QQ function! Play with all the super features!
2. Set the mobile online time you want every day through the SMS menu, and Super QQ will automatically log in to QQ via SMS every day. For example, you need to set mobile online 24 hours a day:
Step 1: Send 1 to 1066170066 to get the SMS login QQ menu
Return to digital settings
1 all day Mobile Online
2 Mobile Online from 9 to 22:00 every day
3 Introduction to Mobile Online
3. Check online friends through the Q menu or send text messages to a fixed number Find online friends on QQ.
Enter through the Super QQ SMS menu
Step 1: Reply to the serial number 2 corresponding to "My QQ" in the text message content of the main menu of the QQ function. You will receive the following short message " Sender 10661700662
Reply number
1 Log in to QQ via SMS
2 Check online friends
3 Check invisible friends
4 Speed ??Dating QQ Friends
5 Modify QQ Profile
Step 2: Reply to the serial number 2 corresponding to the above text message "Check Online Friends", and you will receive a message containing the number QQ friend nickname list, such as "Sender 106617006694
***23 people online
101: Good person
102: Favorite vegetables
103: Tiger Bug
Go back to ZX and turn the page, please return the number + chat content when chatting
Step 3: Reply to the number and number corresponding to the QQ friend in the received friend list By reading the content, you can start a pleasant SMS chat journey with your online friends
4. Super QQ users can send text messages by inputting their friends’ QQ numbers, and they will be notified of the online status of their QQ friends, even if they are invisible. It can also be found.
Step 1: Reply to the serial number 2 corresponding to "My QQ" in the text message content of the main menu of the QQ function, and reply with the number
1 SMS login QQ
2 Check online friends
3 Check invisible friends
4 Speed-match QQ friends
5 Modify QQ profile
Step 2: Reply The above text message "Check Online Friends" corresponds to serial number 3, and you will receive a list of QQ friend nicknames with numbers. The sender is 1066170096
You are a Super QQ Gold*, and you can check online friends for free. Reply "k, friend's QQ number" to check whether the QQ friend you want to follow is online, even if you are invisible
"Send "k, QQ friend's number" directly to 1066170096 to know the friend's online status immediately. Invisibility is not spared either. 》
5. Function description
Use your mobile phone to meet your needs of modifying QQ personalized signature, gender, region and other QQ information anytime and anywhere.
《Modify QQ nickname via text message: directly send the QQ nickname you currently want to modify to 10661700251, and the system will automatically update it for you and display it on QQ. Your friends can see it through QQ.
To modify the personalized signature via text message: directly send the personalized signature you want to send to QQ to 10661700252, and the system will automatically update it for you and display it on QQ. Your friends can see it through QQ.
Change gender via text message: Send "male" or "female" directly to 10661700253, and the system will automatically update it for you and display it on QQ.
Modify your age via text message: Enter your age to 10661700254 directly via text message, and the system will automatically update it for you and display it on QQ.
》
For other detailed explanations, you can go to the QQ official website to have a look/mq06/function_mq11.shtml