Intermittent voicemail problems. When I call in from the outside, sometimes the autoattendant picks up, sometimes it doesn't. When I call a DID, it rings at the desk 4 times then transfers to the Flash extension 5145, but the flash only answers sometimes. other times it just rings and rings and rings. same thing if i'm transferred to an extension. Dialed into the RAD, F983 gives me a STR TLK busy about 70% of the time. other times it prompts me for the log like it's supposed to.