I called technical support to see if I could get the password to update the firmware on my Cisco SPA303 phone from 7.5.1 to 7.5.6. The technician informed me that I'd be voiding my warranty if I did so. I didn't want to void my warranty so I ask how I could upgrade the firmware. The representative said that they could upgrade the firmware remotely. They said I was using the most up to date firmware. Unfortunately, the firmware is from 2011. The technician keeps blaming my network connection for my phone rebooting every hour or so but I'd like to see if upgrading the firmware to one from 2014 would help. If that were the case, wouldn't everyone in my building using the same Internet connection be complaining too? It couldn't hurt to upgrade the phone to the most recent firmware, right?