Tahowe,
I tried to use a ZTE MF626 with freeBSD, but I think still there is no support for this kind of devices.
http://www.daemonforums.org/showthread.php?t=4597
This is what I could test. I'm new to BSDs, but for the response I got in daemonforums I'd think still there's no support.
May be support is coming soon, or I might be wrong and someone with more experience can add some more useful info.
Regards,
Matías