Hi, i'm just to buy a Gsm/gprs Multitech Mtmmc-g-f4 Modem, but i would like to be sure if this modem can be used with SMS ST3.
i planning to run over linux Debian/RHEL 5 and start from compiling source distribution.
thanks in advance.

I cannot say anything for sure, because I cannot test every possible device... But this device looks well working, at least with common SMS features. Some special features, like phonecalls, may require some adjustment. As far as I know, many Multitech devices are based on Wavecom chipset, which is good.

Some other models of Multitech ... F4 are reported as well working.