Do you need a mobile data SIM card for your 3G router that has a fixed IP address?
By having a Fixed IP SIM card inside your 3G Router you can connect directly to the unit and use port forwarding to access IP devices on the LAN - this is especially useful for remote monitoring applications including CCTV and M2M Remote monitoring and management.
A Fixed IP address on your 3G mobile Data connection can also be used when setting up a VPN between offices.
By using a Fixed IP SIM card in a 3G router such as the Teltonika RUT-105 or the Zalip CDG561 you can access PC's and devices on the LAN for remote management or remote monitoring. This comination of Fixed IP SIM and 3G router is commonly used in applications such as IP CCTV and CCTV where access to the DVR (Digital Video Recorder) is required.