I asked online and they only support their Kyocera line.
website
By the way, I am really happy with my phone. I got free after rebate through Amazon and I've spent only $80 since August (with about $8 still on the balance). It suits me for my needs.
Also, the coverage has been astounding. I have been to the mountains in Utah (Park City) and New York (Lake Placid) and points in between. The only coverage drop was on I-77 in WV on the deathpike (WV Turnpike) and that was only in a 10 mile stretch of road.