"The cable companies have to upgrade their networks," she added.

Cable television companies have found it more difficult than they expected to upgrade their networks for telephone service.

American carriers combined have spent about $10 billion in the last three years to upgrade their networks.

There are also more indirect benefits to the phone company for upgrading its network.

Cingular did not say how much it would cost to upgrade its network.

They need billions of dollars to upgrade their sprawling networks.

Upgrading and optimizing your network will be a big part of this step.

The company said it also lowered phone prices to stay competitive and spent money upgrading its network.

AT&T has said it would spend $5 billion this year to upgrade its network.

Cable companies fought back by starting to upgrade their networks to offer telephone service.