Is there any software or website that can be used temporarily, simulate mobile phones and receive short messages?

There is a way, but it is a bit troublesome.

You check the "short message sending platform" on the Internet, and then find several platforms to make phone calls to see which platform has a fixed number to send short messages. After asking, tell the other party that your company will choose the platform, but the other party will give you a test account.

I really don't have any other ideas except this abnormal way. ...