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Device guides for

OPTUS E3131 USB Modem/Windows Vista

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Choosing a network for my modemEnding a connection to the internetInserting a SIM into my modemInserting a memory card into my modem

Choosing network mode for my modem

You can select which network modes your modem should use. Your choice determines the data speeds you can achieve. It's easy, but remember if you have an active internet connection, you need to end it.