I don't know if anyone has been watching this thread but I found this information from Mitel. I contacted support and they sent this information to me.
1) Open Windows Explorer and navigate to c:\intertel\msgstore\TenantGrp1\<MB#>
2) You can either copy these files to another PC to import or import them into Outlook Express directly on the voicemail through drag and drop. E.g. is on the voicemail unit, open Outlook Express (Start -> Run -> msimn) then drag and drop into the inbox.
3) Open the message in Outlook Express. You'll note the date and timestamp the message was left, as well as what mailbox the message belongs to as well as who left it, internal number or Caller ID (if available).
The attached .wav files are stored in the following format, at least in the US.
CCITT u-Law 8.000 kHz, 8 Bit, Mono
Just letting you know,
Thanks