日本通信 List of Products and Services

This SIM card offers a service at a reasonable price for networks that have a lot of upload communication, like surveillance cameras, and very little download communication. Additionally, to provide safer and more secure communication, we can offer a feature that restricts access destinations. 【About the network】 You can use the LTE networks of Docomo or SoftBank. ▷j-com MSP site: https://www.j-com.co.jp/biz/index.html ▷Japan Communications homepage: https://www.j-com.co.jp/index.html

• Surveillance Cameras

We offer a "Closed Domain SIM Communication Service" that allows communication between multiple SIM cards through a closed mobile network that is not connected to the internet. We will send you a package of 12 SIM cards that can be used immediately, so feel free to give it a try. 【Service Overview】 ■ Each SIM card is assigned a fixed private IP address, enabling communication with devices that use the SIM card (such as laptops, tablets, smartphones, etc.) or with modem-type USB dongles. ■ By installing the SIM in a router equipped with IP pass-through, port forwarding, and VPN functions, it can also be used for site-to-site communication. *For more details, please download the PDF or feel free to contact us.

• Communications