41.   Use of telephone lines of any kind for videoconferencing requires the multimedia equivalent of a modem, known as a codec.

42.   Very high levels of compression like this make it possible to transmit image data over ordinary dial-up, digital telephone lines rather than expensive, special broadband lines.

43.   The office now has two dedicated telephone lines as well as connection to the main switchboard.

44.   Dolfo was very circumspect about trusting telephone lines, even lines to Hermann Goering, whose Forschungsamt controlled which ones were tapped.

45.   Well, after Marks advert for Clubcall I decided I just had to hijack the fax machines telephone line and call it up.

46.   There is to be no membership charge for the scheme, which will raise its revenue through premium telephone lines.

47.   Eventually a telephone line was established and Mr Macdonald broke his silence and asked for a friend.

48.   A telephone advice line for Gulf War families could fold because the couple who run the service from their home are facing eviction.

49.   Telephone lines were also fed down the mine.

50.   The material is fired down the telephone lines to ICL in Manchester on completion.