About GM47Module

Dear M2M experts,

One of my friends asked me to build a data collection terminal, uses Sony Ericsson GM47. I have never used this module before. And I searched on the net and seen that it does not include TCP/IP stack. He has got over 100 modules, he got it from an old mobile equipment.

I am experienced on GPRS modules but I have never worked with modules without built-in TCP/IP stack. What do I have to do? Is there a way to update GM47 firmware? Or what am I going to do, coding a stack on my microcontroller? :confused: