Many of the members have amateur radio licences. Theres times when Zello won’t work and AR will. It can sometimes take a bit of setting up an antenna to get a good signal if stationary.We often struggle with phone signal even in some villages, still have zello as never know when it might be needed.
we had in car radios donated recently which has helped.
Have a mag mount antenna for my handheld too if need to help its Range.