The pair, both soaked to the skin, were attempting to navigate the mountain using Google Maps but the intermittent phone signal and lack of topographical detail on this resource meant that they were unable to find a way through steep ground and called for help.
A Team call handler was able to pinpoint their location using a Phonefind protocol to quiz their smartphone, and was able to give verbal directions using map-features to guide them back onto the correct route. Fortunately resources did not need to be diverted from the serious incident unfolding a short distance higher up the mountain.