I have a problem with auto attendant in OS7030, v4.40.
if the outside Caller dials the number of an extension
& that extension is busy the caller will hear No Answer Message (the call is not answered), instead of station is busy.

I've programmed the OS7030 as follows:
MMC 812 Select country
Australia
MMC 601 Station Group
Choose group (506), and choose
[506] STN GROUP
TYPE: VMAA
MEMBER: 301
302
MMC 406 Trunk Ring
Configure for all lines to ring on group 506

Please I need help in the programming of Auto attendant, to play the correct messages ,