Is there any software to send short messages to Unicom on the Internet? thank you

I know a very good website where you can download the client and open the webpage like Fetion. You can send short messages not only to Unicom, but also to mobile phones, such as Shenzhouxing, M-Zone, PHS and GSM. Most mobile phone cards can basically be sent. After entering the webpage, you can send a trial anonymously or register an account on it. They are always free and very easy to use. However, gold is never barefoot, and no one is perfect. It also has a disadvantage, that is, there may be a delay in receiving text messages during busy holidays, but it is absolutely no problem to send text messages at ordinary times! This website is called "Guest" and its address is www.zozoc.cn.