The UK mobile networks provide dynamic, private IP address assignments to 3G/4G devices which in most cases are perfectly adequate for home and general business use. Your 3G Mobile Broadband internet connection is routed through a NAT firewall in your providers data centre, which adds security but also restricts the ability to connect to your Mobile Broadband device from the Internet.
Your provider will not be able to cater for any port forwarding requirements you may have, so an end-to-end connection to your device will not be possible even if your device is a 3G/4G router. This limitation also prevents site-to-site cellular connections from being established for VPN applications.
IoT (The Internet of Things):
We work with a number of global partners to deliver advanced Internet of Things solutions including LPWAN (Low Powered WAN), Satellite, Sensors and analytics Nationwide and also globally with World Global roaming Iot sim cards