let's go over them 1 by 1:
7-1 is ok
7-2 is ok
4-10 is ok
4-14 is ok (you might try changing them all to yes. shouldn't hurt. i have heard it both ways from nec)
4-15 is ok
1-8-08 this is the class of service. (ie page 4, linekey5 turns on live record.)
4-12 is button assignments. it is probably ok
4-17 is ok. this means it doesn't have attendant class of service features
3-42/43 dit/ana you're not using
2-06 is ok. you're system is not split into 2 seperate systems for 2 different tennants
1-6-05 this is dss console button programming. not really needed for the vm
3-45 this is where you turn on live recording for each of the lines. you would still need to enable it in class of service (1-8-08) in order to use it though
i'm not seeing how when people call in is it getting to the vm. are you doing it on 4-01/02 day/night ringing?
not sure about the busy thing.....i have a guy i am emailing now. will get back to you on that.