Thank you for your interest in our products. I would like to tell you about TL-WR842ND as your looking can’t connect through a sim card with USB port. Because the USB port on TL-WR842ND allows you to share data or an FTP server, share music, video and photos via Media Server and the device’s built-in Print Server makes home or office printing much more flexible.
If you need to see cameras when away you must have the public IP address provided by ISP. It may be difficult or impossible for them to give you.