Hello,
I am not sure if your NOKIA has a serial interface since I do not know this phone. If it has a serial interface then you can certainly send AT commands to it and consequently read and send SMS messages.

A PDU to Text routine was published elswhere in the forum by bitmaniac.

You can check the "Pic to GSM Phone connection (HSerin problems)" threat where you can find some other details.

Regards
Kypros