[Asterisk-Users] Polycom 501 unregistered itself?

[William M Conlon]

I've got two Polycom 501s in an Asterisk 1.2.6/zaptel 1.2.5 with  
Digium connected to POTS.  My legacy key system is still running in  
parallel.

Today my 501 didn't ring on an inbound call, nor could I call out.

sip show peers showed no ip address for my 501. Rebooted the phone  
and it's ok now.

There wasn't anything enlightening in /var/log/asterisk/messages.

Has anyone seen this before?

Bill