An 0800 number is free for people to call your business from UK landlines and mobile phones.  Having a freephone number can be extremely powerful for your business. It has national appeal, can make your business seem larger than it is, encourages people to call, and gives off a very clear message that your business values communicating with its customers – all factors that can be vital for growth.  Freephone numbers:  Remove the cost of making a call Incentivise people to call your business Can put you ahead of your competition