Here are the online version of Telstra Mobile WiFi MF30 and Telstra Elite Mobile WiFi MF60 user manuals. Most of the time, you don’t need to make any change of the settings on your device unless you know what you are doing. The settings that you may want to make change are WPA (Network Key), SSID (Network Name) and APN.
Telstra Mobile WiFi MF30 User Manual: Download
Telstra Elite Mobile WiFi MF60 User Manual: Download
In order for other network SIMs to work with these devices, the network 3G band has to be one of these frequency bands 850/1900/2100Mhz. 900/1700Mhz 3G band networks will not work on these devices.
Currently, the major 3G bands used in Australia are 850/900/2100Mhz:
Telstra – 850/2100Mhz 3G band in Metro area and 850Mhz 3G band in Regional/Rural area.
Vodafone – 850/2100Mhz 3G band in Metro area and 900Mhz 3G band in Regional/Rural area.
Optus – 2100Mhz 3G band in Metro area and 900Mhz 3G band in Regional/Rural area.
Most European and Asian countries use 2100Mhz band for the 3G networks.