Hello,

I seem to be experiencing the exact same issue as is documented here:
http://lists.freeswitch.org/pipermail/freeswitch-users/2008-September/006272.html

Like above a "sofia profile external restart" immediately resumes  
operation. Does anyone have an idea what this may be?

Is there a debugging step I can take? If it were a predictable outage  
I could monitor the registration attempts  and find out why there are  
[401][Unauthorized] errors suddenly (again after a  'sofia restart'  
all is well).

This happens multiple times a day for us.

Thanks,
- Jesse