The document provides tips for businesses to increase profits during an economic downturn by boosting sales and reducing costs using the telephone. It recommends using a freephone number to attract more customers, providing excellent customer service with an 0845 number, and implementing a referral program. Businesses can increase sales by getting more customers, increasing purchase frequency through targeted offers, and raising average order value via add-on sales and promotional deals. Costs can be reduced by choosing a low-cost telephone provider and improving sales skills.