What is the concept of 30M flow? If I use my mobile phone to send 300 text messages online a month. usually

If you hang up with qq, there will be data transmission (that is, traffic) between the mobile phone and Tencent's server, and there will be GPRS traffic charges. However, this traffic is still very small. Generally speaking, when the network is in good condition, the one-time login traffic is within 10kb, and if you don't chat, one hour is about 100kb (of course, I haven't calculated it carefully, but now I log in three or four times a day.

So 30 megabytes of traffic a month is more than enough.

If there is traffic, use Fetion to send short messages, but only mobile phone numbers are supported.