1.   It was Decided that the entire computer system should be upgraded.

2.   This constraint will fade over the next few years as more cable operators upgrade their systems and add more services.

3.   Upgrading the system would be very costly.

4.   Although it is profitable and has a large cash flow, the company wanted to avoid making the large investments needed to upgrade its systems with new technology.

5.   And the problem will spread unless private switching systems are upgraded to recognize such codes, phone system administrators warn.

6.   And that means spending billions of dollars upgrading cable systems and convincing customers to switch away from what may be the only phone company they have ever known.

7.   AOL chairman Steve Case said Monday his company needs more revenue to continue upgrading the system.

8.   As cable companies upgrade their systems to carry conversations, computer data and two-way video, Sprint intends to be their partner.

9.   As competition nears, it is already having the effect of improving service, as firms upgrade their systems to make sure they can compete effectively.

10.   Bay Area cable TV companies also will upgrade their systems to provide phone service as well as upgraded video services.