It comprised all of the London Telephone Area ( the area covered by the 01 telephone area code at the time ) plus the charging groups adjacent, for example : the Romford Charge Group, comprising Hornchurch, Ingrebourne, Purfleet, Rainham, Romford, South Ockendon, Stapleford and Upminster telephone exchange areas.
32.
One of the last manual telephone exchanges with party lines in Australia was closed down in 1986 in the township of Collarenebri, where most town residents had a telephone number of only three digits, and to make a call outside the exchange area it was necessary to call the exchange to place a call.
33.
In the London telephone area, calls to subscribers who were not serviced by Director telephone systems within local call-charging range of the London Director exchange area were carried by tandem exchange " Toll A " : a subscriber would dial a prefix code, usually three letters, followed by the number of the other subscriber on the fringe non-director exchange.
