Thanks for the information @jia, trying to send some texts now!
Are we sure there is no data, though? Looking at the document http://wm.sim.com/upfile/2013424141114f.pdf section 8.2.2 is titled "start up TCP or UDP connection". The section then goes on to list parameters that include domain, IP, etc. And I've certainly heard of 2g data plans, although they are slow.
On the chip site, http://wm.sim.com/producten.aspx?id=1019, the description includes:
WCDMA/GSM/GPRS/EDGE ... embedded LUA script, TCP/UDP/FTP/HTTP/HTTPS/SMTP/POP3 and MMS
Sorry, I don't mean to be second guessing things - you guys are the experts on this - I just want to make sure.. because data support would be ideal for my use-case.