The undersea cables remained in use carrying telegraph traffic until 1962.
2.
It was the'mouth'and Makara Radio was the'ears'for international telephone calls and telegraph traffic.
3.
Until 1912 Southport handled telegraph traffic for all over Australia.
4.
As telegraph traffic increased, it was found that the Grove cell discharged poisonous nitrogen dioxide gas.
5.
In addition, the cable carries telegraph traffic, leased circuits for airlines, shipping companies and other commercial transmission.
6.
telegraph traffic continued to rise in the following decade, the technology was soon to be replaced by the telephone.
7.
Before the Pacific Cable was opened, the Eastern Cable Company and its associates maintained a monopoly over international telegraph traffic with Australia.
8.
At this time Rockhampton was the main telegraph traffic centre for central and north Queensland and was the largest telegraph office outside Brisbane.
9.
Message switching is still used for telegraph traffic and a modified form of it, known as packet switching, is used extensively for data communications.
10.
TOPIC was used to protect telegraph traffic, and replaced the earlier mechanical system called ROCKEX . It could be operated in both on-and off-line modes.
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