Finally got the time to try and play with this thing, but since it was free, nobody knows the login. I have established communications with the COM port, but have no idea what the maximmum number of characters for the login is. I need to crack it before I can set it up for my Asterisk home phone system. Not sure if I can clear the NVRAM inside either.

It is possible to get in before the flash is loaded. Would a reload of flash memory or an upgrade bypass the password? Also there's cheap TDM cards available on ebay from time to time, but it's not worth the chance that they too may have passwords. Somebody has to know what to do.