EC20 port forwarding

Hi,

We are using EC20 to provide LTE capability to our raspberry pi and we have asked our ISP to provide a static IP to our cellular service.
I would like to know if there is any ways to do port forwarding in EC20 so that I can set a static IP for my raspberry Pi and open up a service with port 8000, I set up port forwarding in the EC20 module for 8000->8000 so that a client from the internet can access the service?
Or is there any ways to do something similar using DMZ?

It is fine if it is better to talk in Chinese.

Chinese Forums 移远支持社区 - 移远官方社区 (quectel.com)

we have asked our ISP to provide a static IP to our cellular service. —> You make it? The operator won’t give us an public IP, let alone a static one.

Yes, we are in Hong Kong and we partner with a local ISP. They offer a paid service for that.

I still think it’s impossible.Public IPv4 address is not easy to apply for. You can ask about it in Chinese in https://forumschinese.quectel.com/ . Quectel FAE can answer in Chinese.

BTW, the EC20 is a standard module or an openlinux one?