21.   Business customers use it to hold confidential meetings, confident that they will not be overheard.

22.   BUSINESSES SEEK ADVICE ON WEB SITES Many businesses are examining how customers are using Web sites and how their experiences affect attitudes toward a company.

23.   But customers used it to prevent the flaking that jet travel can produce.

24.   But cable customers can use only the Internet services chosen by the cable company.

25.   But if a customer uses another company for one of those services, you risk losing the rest of his or her business, he said.

26.   But instead of grabbing the first money-saving deal, many such customers are using the prospect of deregulation to do in-depth studies of their energy needs.

27.   But she did find the internal phone that customers use to tell bank employees when they are ready to leave the vault.

28.   But the atmosphere in most pharmacies fell somewhere in between, and customers used their own calculations of personal risk to decide whether to buy the products.

29.   But not all ATMs use the same interface, and bank customers can also use human tellers, the telephone, the mail, or the Internet.

30.   By dialing an access code, customers can use any carrier, however.