Plantronics + Polycom.
Now together as
I have a Soundpoint IP330 SIP that won't boot fully. It is stuck at this screen:
I performed a reset (1357 at boot) and it is still doing this. It has been sitting for close to an hour with no change in status.
Try to download software for your phone (BootROM + SIP Software) from support site and try them to download to your phone.