Unicom Mobile sends messages to each other.

It depends on whether your package includes the Internet package at that time. If there is, as long as it is not oversubscribed, there is definitely no charge! But as far as I know, as long as the internet package was not included in the past, it is still not included now, but the charge is 1 gross 1.

The so-called peer-to-peer SMS is the kind you use between users of the same operator. For example, if you are a mobile subscriber in China, you only need to send it to China Mobile 134, 135, 136, 138, 139, 158. This is the general set meal!

Internet (external) refers to the exchange of short messages between users of different operators. For example, if you are from China Mobile, send it to China Unicom/KOOC-0/3/KOOC-0/,/KOOC-0/32,/KOOC-0/55,/KOOC-0/56 users, PHS users and China Telecom/KOOC-0/33.