21.   Affordable digital phones have sealed the fate of the original one-way pager capable only of receiving numeric messages.

22.   After rising to financial analyst, he jumped to Pacific Bell, where he moved into the technology sector, working on plans for digital phone lines.

23.   All it takes is a special digital phone line and a little black box with a microphone and a headphones.

24.   Business travelers with modem-equipped laptops will find digital phones to be extremely modem unfriendly.

25.   But Americans, who first got digital phones only a few years ago, have barely begun to use them for two-way data transfer and messaging.

26.   But at least one new generation of digital phones used widely around the world remains impervious to attack.

27.   But digital phones are prey to the same kinds of software bugs that cause cursors to freeze and computer networks to crash.

28.   But digital phones are widely believed to be immune from cloning.

29.   But if extreme range or security is important to you, you may find that a digital phone is the right choice for you.

30.   But if you are a salesperson often in the car, it may be worth buying the digital phone and make up the cost in phone bills.