Sony PCWA-A220 - Manual (Page 45)

Internet service providers
I w ant to conne ct to anothe r Inte rne t s e rvice provide r.
Use one of the Access Point Setup Utilities to register another Internet service provider.
I w ant to s w itch be tw e e n tw o Inte rne t s e rvice provide rs .
You can register multiple providers using the Wireless Palette. For details, refer to the Wireless Palette Help file.
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