3G internet with stock Amiga 500

[Akiko]

I  would love to somehow get my CD32 / SX32 online, are there any other solutions that don't require a phone and data plan? Could something like these Serial to Ethernet adapters be made to work?

http://www.ebay.co.uk/itm/Multifunctional-serial-Server-RS232-RS485-to-ethernet-TCP-IP-UDP-converter-/251170671582?pt=UK_Computing_Other_Computing_Networking&hash=item3a7af04bde

http://www.ebay.co.uk/itm/Interface-Serial-To-Ethernet-Price-for-1-Each-/390485257507?pt=UK_Computing_Other_Computing_Networking&hash=item5aeabc2d23