I have a customer with a DSU that their phones will randomly answer the call by themselves. For instance they call in from the outside and they may not even hear the ring and then all of the sudden they hear people talking in the back ground. The call just pops up on speakerphone. It has happend to multiple people from the outside and it answers at multiple phones on the inside. I've been working on Comdial for a long time but this is a new one on me has anyone ever had this happen?