A mobile phone (adequately topped up if 'Pay as You Go') is a vital piece of kit for the independent traveller in Jamaica. Signals in even the remotest of places ease co-ordinating taxi journey plans.
JUTA Taxi's are quite safe and a very reliable mode of travelling, they might seem a bit on the expensive side and journeys on the poor road infrastructure are slow, but at least you are contributing directly to the local economy.
Is this your business?