51.   Press a button to send him or her a text message.

52.   Sending text messages does not require making a call.

53.   Short text messages sent via cell phone have already replaced many calls, and some third-generation services may do the same.

54.   So they communicated with each other in terse text messages for several hours as Federman, covered in ash, fled on foot from Lower Manhattan.

55.   Text messages over the phone are a high-technology veil, protective yet provocative.

56.   That might not sound like much, especially if users are just sending short text messages back and forth.

57.   Telephone operators are equipped with computers that can receive text telephone messages.

58.   The frustration of a pager, even an alphanumeric one, is that you only get a phone number or a short text message.

59.   The service was initially developed so telephone users could send each other quick text messages like those on pagers.

60.   The system also can link to normal computer-based e-mail, as well as text messages from other phones.