This function returns the first read message in the given mailbox. To get all the read messages, this function should be called first, then call MBNextReadMessage.
Parameter: Line
Type: Integer
Description: The phone line to access.
Parameter: mb
Type: Mailbox
Description: The mailbox to access. This is a reference to a mailbox object.
Use hsp.MBGet to get a mailbox.
Return value: File
name
Type: String
Description: The filename of the voice message. Note that this filename
does not include the full path to the file. Voice messages are saved in
the directory messages in the HomeSeer application directory. To create
the full path to the file, use the GetAppPath function like:
path = hsp.GetAppPath & "\messages\" & message