smstools and CDMA

From the GMS point of view I live and work in the boondocks: Grand Forks, North Dakota. (OK, so there is a decent argument that the entire US is GSM boondocks.) Anyway, I'm trying to figure out a way of sending and receiving text messages using a tool like smstools and a CDMA modem. I've found the MultiTech CDMA modem (MTCBA-C-N3-NAM) but I can't seem to find any success stories to go along with it. I was wondering if anybody has had any luck with either this modem and smstools3 in particular, or with sending/receiving text messages with a CDMA modem.