1.   Cable companies are cooperating to establish fiber networks involving different operators so that they can compete with the telephone companies.

2.   Among its top holdings are Voicestream Wireless, a cellular phone provider, and Qwest Communications, a phone company that is building a global fiber optic network.

3.   And a fiber optic network is a fat, fat pipeline.

4.   And at least half a dozen telecommunications companies have installed fiber optic networks to provide high-speed data communications through the main business areas.

5.   And the Williams Cos., which supplied Worldcom with its first fiber optic network, the Wiltel communications unit, recently started yet another national fiber optic network.

6.   And with the growth of the Internet, telecommunications carriers have built extensive glass fiber networks that carry pulses of light to handle the load.

7.   A stock analyst said that Henson was just bluffing, hoping that his talk of building a fiber optic network would scare off potential new entrants into long-distance service.

8.   Bresnan operates cable systems in northwest Poland as well as a fiber optic network in Warsaw.

9.   But Friday, the Federal Communications Commission denied a request by MFS for permission to transmit video over these fiber optic networks.

10.   But in the end, the results could be lower prices and a rush to offer advanced communication services over fiber optic networks and by satellite.