31. The company is already investing hundreds of millions of dollars to upgrade its coaxial cable network to carry telephone traffic . 32. At Charles Schwab & Co ., the nation's largest discount brokerage, telephone traffic was a third more than normal levels. 33. AT & T switches approximately 60 percent of telephone traffic to and from the U . S . at present. 34. Indosat's international telephone traffic increased to 683 . 9 million minutes last year from 576 . 6 million minutes in 1996. 35. ETB, which currently operates 1.7 million lines, hopes to manage at least 20 percent of Bogota's national and international telephone traffic . 36. AT & AMP; T switches approximately 60 percent of telephone traffic to and from the U . S . at present. 37. At Charles Schwab & AMP; Co ., the nation's largest discount brokerage, telephone traffic was a third more than normal levels. 38. In 1994 New Zealand Rail Limited sold the cable to Clear Communications for telephone traffic , leasing part of it back for signalling. 39. When the towers collapsed on live television, telephone traffic from abroad instantly skyrocketed as people called to check on friends and relatives. 40. The partial strike did not disrupt operation of the national carrier, which handles more than 90 percent of all domestic telephone traffic .