OK, I was finally able to get this working with some much needed help from Ralph. Thanks a million for your help Ralph. Below is the setup we came up with:
1.) Setup a Class of Service (13) with the following settings:
Recorded Announcement Device: Yes
Recorded Announcement Device - Advanced: Yes
Answer Plus Message Delay to Message Timer: 5
Answer Plus Expected Off-hook Timer: 6
Answer Plus Message Length Timer: 5
Answer Plus System Reroute Timer: 5
2.) Setup a hunt group (5599) with the following settings:
Class of Service: 13
Hunt Group Priority: 64
Hunt Group Type: RAD
Phase Timer Ring: 1
3.) Added RAD ext's 5560,5561,5562,5563 as members of Hunt Group 5599
4.) Created Hunt Group (6000) with the following settings:
Hunt Group Mode: Circular
COS: Leave blank
First RAD: 5599
Hunt Group Priority:64
Hunt Group Type: Voice
5.) Added analog ext 8801 as a member of Hunt Group 6000
6.) Setup Call rerouting First Alternative (5) with the following settings:
All options: This
Directory Number: 5500 (5500 is our hunt group that rings the receptionists live)
7.) Setup Call Rerouting Always Alt (101) with the following settings:
All options: Reroute
Directory Number 6000
8.) Rerouted my DIDs accordingly:
Call Rerouting Day: 101
Call Rerouting Night 1 & 2: 2 (2 reroutes to our voicemail hunt group)
Call Rerouting 1st Alt: 5
9.) Adjusted the following timer in COS 1 (the COS my Trunks are assigned to):
Call Forward No Answer Timer: 5 (5 is the length of my RAD message)
10.) Adjusted the following timer in the Systems Options Assignment:
Call Rerouting Timer: 40 (at 40 seconds the call is rerouted from 1st Alt to 2nd Alt.