International Free Phone (Toll Free) numbers, enable your business to have a presence in over 76 countries worldwide. For example, your company is based in the UK, but advertises for business in the USA. BtL supply an 1800 number that connects to your phone system in the UK, such as your Customer Services Department. The customer gets a free call and your company pays the cost of the call. The greatest advantage being you will not have to add any additional lines or equipment.