I currently have a Telrad 1000 switch with ImaGEN Voicemail. On one of the analog extensions, I receive a stutter dial tone when taking it off hook. When checking the voicemail box for a message, there are no new or old messages. Can something else in the system cause a stutter dial tone? I've deleted the voicemail box, as well as the extension (in the Telrad switch). When I re-create the extension, without Voicemail, I still receive the stutter dial tone. I've also disconnected all phones from the Telrad port. I've also reset the Telrad cards, I've moved the extension to a different port, and also rebooted the ImaGEN desktop computer.