21.   Estrin wants phone calls placed over the Internet to be as reliable as those made over traditional phone lines.

22.   Fiber optic cables, which use pulses of light to convey information, are capable of transmitting data far more quickly than traditional analog phone lines.

23.   For years, telephone companies have offered ISDN as a high-speed alternative to traditional phone service.

24.   If traditional phones go down, the back-up radios would used to keep the electrical grid functioning.

25.   In addition, new phone technologies are enabling traditional wireless phones to be used on almost every corner of the globe.

26.   In addition to Deltathree, there are several companies offering free calls from personal computers to traditional phones.

27.   It also faces competition from traditional phone networks.

28.   It relies on traditional phone lines, and is a painfully slow way of transferring large amounts of data.

29.   Joining Otelo, however, would give BellSouth its first piece of a European provider of traditional phone service.

30.   Its networks can transmit voice, data, and video for large corporate and government clients, usually for less money than the traditional phone company.