Should Changsha use PHS, China Mobile or China Unicom?

According to the general routine, use PHS to move the dynamic zone

Because it is the most affordable to use PHS to make phone calls, which is the local call fee, but the call quality is disgusting. Changsha is commonly known as "Hey, hey." "嬲"

But texting is definitely a dynamic zone, because you can book text message packages and there are preferential periods, such as half-price calls after 9 o'clock in Beijing

I am from Changsha in Beijing This is what I did when I was in school and many of my friends are dynamic PHS