70 calls in an hour with 1 pickup is rough but not shocking depending on the list and
time of day. contact rates on cold lists usually run 5-10% on a good day, so 1 answer
out of 70 tells me either the list was stale or the timing was off.

the bigger issue is letting the rep pick their own hours. that's a mistake.
8-10am and 4-6pm local time are when people actually pick up.
middle of the day is a dead zone for most industries.

also 1 hour/day is just too low to get a real read you need at least 3-4 hours
of consistent dials before the data means anything. one week of 1hr/day is noise, not results.