"The number of telephones connected with the Post Office system in the metropolitan area on the 31st of March 1907 was 41,236, and additional subscribers were being connected at the rate of about 150 a week.
The length of underground pipes which had been laid in the metropolitan area for telephone purposes was 2030 m.
The average cost of constructing an exchange circuit in the metropolitan area (including the installation of telephone instruments and of exchange apparatus, but excluding the provision of spare plant) has been £33.
The metropolitan system as planned in 1905 for the near future contemplated storage for 80,000,000,000 gallons, it is only part of a system planned for the service of the metropolitan area.
The metropolitan area of Sydney consists of a peninsula, about 13 m.