BlackSunshine,
By default a newly created ACD Hunt Group doesn't put an Agent into DND if they don't answer.
An Agent only gets put into DND IF there is a number other than 0 in the value next to ACD Agent No Answer - DND Message Number.
Also it isn't rerouted if the Agent doesn't answer it is offered to the next available Agent based on the Search Type and will continue to stay in the Hunt Group until the Recall Timer expires and only if there is a Value listed next to Recall; otherwise the Recall time is ignored.
Thanks,
TE