Spacebridge

Hologram provides a service called Spacebridge that allows you to create secure, authenticated tunnels to send data to a device with a Hologram SIM card connected to the cellular network. With Spacebridge, you can send inbound traffic to any port on the device.

Follow the guide here

Useful Command Line Arguments for Spacebridge Client

• --text-mode: Display all prompts as text on the command line instead of in a GUI.
• --apikey: Specify your Hologram API key on the command line.
• --forward: Specify a forward in the format ::. You can specify this option multiple times. Use this in combination with --text-mode to create a fully scripted tunneling setup.
• --help: Display additional options