| 1861 | First telegraph line in Queensland opened between Brisbane and Ipswich and later in year extended to meet Sydney line. |
| 1878 | First experiments with telephone conducted in Brisbane on Saturday 26 January. Later in year first successful telephone call made to Ipswich. |
| 1880 | First Govt. owned telephone exchange in Australia cut over in Brisbane on 8th October on ground floor at G.P.O. |
| 1882 | First country exchange was opened at Maryborough with 32 subscribers. |
| 1885 | Over 300 subscriber's services were connected to the Brisbane exchange. |
| 1886 | Bundaberg exchange opened. |
| 1887 | Coastal Telegraph Line completed in August between Thursday Island and Brisbane. |
| 1888 | The first public telephone office was opened at the Brisbane Post Office followed by others at South Brisbane and Fortitude Valley. |
| 1889 | A new multiple switch board was installed at Central and cut over in 1890. |
| 1891 | Charters Towers exchange opened. |
| 1893 | First section of the Pacific cable from Burnett Heads to new Caledonia. |
| 1894 | Telegraph station at Paterson moved to Peak Point now known as Cape York. |
| 1895 | The Govt decided to obtain the services of an Electrical Engineer from abroad. |
| 1896 | During the year ended 30 June the number of subscribers on Central Exchange reached 600 and the number of calls averaged 6500 daily. |
| 1897 | The first trunk line was put into operation between Townsville and Charters Towers. |
| 1898 | A Brisbane - Ipswich line was opened and proved successful. The same year saw the opening of telephone station on the "Phonopore System" |
| 1900 | Inauguration of the Postmaster Generals Department (PMG) |
| 1901 | The telephone system was vested in the Federal Government. Federation was here. |
| 1902 | Pacific telegraph submarine cable laid from Vancouver to Southport. |
| 1907 | New regulations were introduced which gave existing subscribers the choice of remaining under the old system or transferring to the measured rate system. |
| 1910 | Professor Alexander Graham Bell made a visit to Brisbane and the central exchange whilst the installation of a new C.B. Exchange was in progress. |
| 1912 | Transfer of last subscriber from magneto exchange to new C.B. exchange Brisbane. |
| 1923 | First interstate trunk line was brought into service from Brisbane to Sydney. |
| 1925 | The first automatic telephone exchange in Queensland established in South Brisbane. |
| 1927 | Three dial circuits from Ipswich and one each from Toowoomba and Southport were provided to Albion, Newmarket and Sth. Brisbane Automatic Exchanges. |
| 1928 | The first carrier wave telephone system was introduced into Queensland when a 3 channel system was installed between Brisbane and Sydney. |
| 1929 | In November Brisbane Central Exchange became automatic. |
| 1932 | First Queensland country automatic exchange opened at Cairns. |
| 1940 | The installation of an automatic exchange at Rockhampton was completed. |
| 1946 | A 12 channel carrier system was installed between Brisbane and Sydney, the first of that type in Queensland. |
| 1949 | 100,000 telephone subscribers in Qld. The first radio trunk line in Qld between Redland Bay and Russell Island. |
| 1951 | The Townsville exchange was converted to automatic working during March. |
| 1952 | Teletype (USA) introduced into Queensland replacing Morse code. |
| 1955 | Telex introduced into Queensland for business use. |
| 1959 | First point to point STD from Redcliffe to Brisbane and Southport to Brisbane. |
| 1959 | Television introduced into Queensland. |
| 1960 | First speaking clock system in Brisbane. Intro of the Extended Local Service area (E.L.S.A.) in Brisbane Area. First crossbar exchange installed at Toowoomba. |
| 1962 | 200,000 telephone subscribers in Queensland. |
| 1963 | First broadband bearer system in Queensland. Brisbane to Tweed Heads section of the Brisbane to Lismore Coaxial cable. |
| 1966 | Completion of Brisbane to Cairns microwave radio line (Seacom). First single SSB HF radio system Cairns to Weipa. |
| 1968 | Cutover of the Brisbane ARM (Crossbar) - STD trunk exchange. 1974 400,001 telephone subscribers in Queensland. |
| 1970 | Coolangatta C.B. exchange converted to automatic allowing Gold Coast to receive automatic service. |
| 1972 | Remote control TV transmitter station constructed on Mt Bellenden Ker to provide service to Far North Queensland. |
| 1972 | Centenery of opening of Overland Telegraph, Adelaide to Darwin. |
| 1974 | Completion of Townsville, Mt Isa and Darwin microwave radio system. STD introduced to Darwin. 400,001 telephone subscribers in Queensland. |
| 1975 | Commencement of installation of first 10c computer controlled trunk exchange as Woolloongabba. First radio concentrator at Isaac River. |
| 1978 | Telefinder service introduced to Brisbane and Gold Coast |
| 1979 | Telephone and telex calls transmitted by "Hermes" satelite in demonstrations at Longreach, Emerald and Yeppoon. |
