which brand mobile phone equipped with the best modem for remote communication purpose?

I would guess old Nokia 6210, loads of software, and dataleads available for it's modem.

Cheap too, you should be able to get a good used one for UK 20GBP

Steve Terry

: which brand mobile phone equipped with the best modem for remote : communication purpose? : : : I need cheap for testing purpose. : project to improve irrigation system in the western part of China.

see ELEKTOR MAGAZINE JANUARY 2003 price of GMS module not known

but the front page project is what you want.