I have a problem with a SPA400 constantly rebooting.
The problem occured when I did some changes in the "Voice"-tab.
I changed the "Caller ID/CP Tone Method" from american to european, and the SPA400 started rebooting constantly.
The only way I could avoid this was to reset the device and change the "Caller ID/CP Tone Method" before I did anything else.
But now I'm afraid to do any changes in the future, in case it breaks down again.
What could be the cause of this problem?
Engineering are investigating several issues on the SPA400. I've shared this thread with them.
Just cam across another thread with similar problem:
There is a link to newer (beta??) firmware 188.8.131.52 which might help your situ ?