OptiPoint 410Standard phone

Hi, i have an old optipoint 410 standard phone that has the HFA firmware on it, i was hoping to use it with our freepbx system, but i think it got the wrong firmware on it and requires a SIP version, is anyone able to help me convert this phone or provide the sip firmware…


I tried to find the SIP firmware for the OptiPoints but could not. I would be interested in finding it too.