I have the same problem on my SPA941.  It randomly reboots throughout the day. Seems to happen a lot right during an incomming call after the phone starts ringing but before I can pick up.  But it does sometimes reboot as well when there is no incomm...

I have experienced the same frustration.  When comparing the phones, the only difference I found between the two models after extensive research was no POE and no Ethernet Bridge on the 941.  Then, when I go and udpate firmware, I realize that the fi...