Does anyone know of either a method within the Vigor router or of a separate web service to get alerts if my SIP accounts are no longer registered? I've discovered that every so often my SIP is not not available. Only unplugging and restarting the router will re-connect it. My worry is that I am missing calls, and don't know that the service has disconnected until I try to make a call and get no dial-tone.

The ideal would be for the Vigor to send an email if this happens, but I'd also happily pay a small amount to a web-service if it could check my SIP is connected every 15 minutes or so.

Thanks