[Asterisk-Users] Polycom IP600 Phantom Ringing

[Walt Reed]

On Tue, Mar 08, 2005 at 09:05:34PM -0500, Ben Ruset said:
> Hello list:
> 
> I have a very odd problem. Seemingly randomly, my Polycom IP600 phones 
> will ring without a call being placed to it.
 
> That is to say, a random phone will ring. Nothing shows up under Caller 
> ID. Even the buttons that light up to show an incoming call do not light 
> up. If you pick up the handset, you can hear the phone ring through the 
> speaker.
> 
> Hanging up the phone makes it stop ringing. Then, sometime later, it 
> will happen on another random extension.
> Is this a common problem? Where can I look to start diagnosing this?

You can run ethereal to capture all packets to / from the phone.
Something is obviously causing this problem. If nothing shows up in
ethereal, maybe there is a power problem. Are your phones POE or
wall-wart?