Is the voice call charge or traffic on WeChat mobile phone?

There is no charge, but it will consume your GPRS traffic.

Generally speaking, two people talk to each other 1 minute, which consumes about 200K traffic.

That is to say, the 30MB package can support 150 minutes of calls, which is cheaper than telecom service providers, but it still burns a lot of traffic.

If you use WeChat, you have to pack a package with a large flow.