Increase Agent Timeout in Queue Timing & Agent Options or Ring Time in RING GROUP

Hi, i have setup Queue Number 400 and Queue number 401. On queue 400 i did Queue 401 as Agent the reason why i am doing this is because i want 2 different MOH so this way its working but i have one problem because on the Timing & Agent Option the maximum option i can increase in Agent Timeout is 2 Minutes, so if the caller is waiting on hold for 10 minutes in my reports it will show me the same caller as ABANDONED 5 times. So the only solution is to increase the Agent Timeout to 30 Minutes or 1 Hour because there are customers that waits on queue for too long. Also another solution is to increase Ring Time in RING GROUP which is now 300 seconds max, i want it more than 300 seconds. Thanks