We set up our 3 children on iwireless (formerly iowa wireless), with prepay
for unlimited monthly minutes.  We purchased the phones at full price and
there was no contract.  New towers were planned for our area, but now that
they are finished the coverage is not going to be good enough.  We've now
gone back to our original non-GSM carrier for all 3.   I have 3 GSM cell
phones that I would like to sell.  How do I know if they are locked to the
carrier?  We called iwireless and they said yes they are locked, but they
didn't lock them, the manufacturer does.  A second call and they said we are
a small company and don't have the technology to unlock them.  Since we paid
full price for these phones, I'm ticked off.  What other GSM carriers are
there in the heart of Iowa that I could go to and test their SIM card?  If
they're locked,  I don't want to send the phones out, and I'm leery about
giving out the IMEI number for remote unlock.  I've tried a code calculator
for a nokia 6170, but the model doesn't show up.   The other two phones are
motorola and LG.   Are we getting the truth from iwireless?  Any suggestions?