We have a customer that has the NECSL2100. The problem they are having is a bit bizare. There is not any set time during the day that this happens but there are times that they will get several messages in the voicemail box but all the messages are dead air. The calls appear to be 30 seconds apart. Any suggestions?

There are times that when you call the main number it will just ring and won't go to voicemail. In this instance it was after hours. Once the customer rebooted the system it resolved itself and went to voicemail.

We have checked with the local telco, its a fiber connection and line, equipment have all been checked. It seems to all point to the phone system but at a loss?