China-Australia international SMS delay

I think no matter which company's sim card, one thing is the same as what my friend said before. There is a third party grafting between Australia and China, and the line is really messy. In addition, with the arrival of the rainy season in Australia, don't you think the quality of ADSL2 network is getting worse and worse? Sometimes I even go to giraffes to use WI-FI there, but to be honest, some of my classmates live in places with weak signals and so on. Try Skape under the mobile phone.