Fixed IP SIMs - attaching to the APN network

The SIM card that is inserted into a device as part of an APN network looks exactly like the SIM within a PAYG mobile phone.

This is significant because it is not possible to remotely access and configure a device with a dynamic IP address, without expensive software first being installed on the device.

A dynamic IP address on the SIM also means that devices can only connect to central corporate systems via firewalls and utilising Network Address Translation, which increases latency and generally means slower connections. Remote users logging in to corporate systems also have to remember multiple passwords, or otherwise expensive software has to be installed onto their laptops.

But with a fixed IP SIM - i.e. one connected to a private APN network - there is no expensive software, firewall or NAT translation: there is a direct end-to-end connection between device and central systems. Connection is faster, more secure and (for remote access to corporate networks) no passwords necessary once the user has logged onto the corporate network (remotely) as usual.

Should a fleet management provider have, for example, a fleet of vehicles with fleet management devices using PAYG SIMs, they could all become part of a private APN network "over the air": fixed IP addresses can be assigned remotely.

For more infomration please call 08451 196 100 or email enquiries@roamafone.com