Telstra 2008 Annual Report Download - page 43

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Telstra Corporation Limited and controlled entities
Full year results and operations review - June 2008
PSTN: Public switched telephone network - referred to as the ‘fixed line’ network, it is the standard home telephone service
delivered over copper wires.
Resale Churn: a movement of a fixed service between Telstra Wholesale and Telstra Retail, or between Telstra Wholesale resellers
on the Telstra access network.
SARC: Subscriber acquisition and recontracting cost - a measure of the upfront costs that we incur in the acquisition and retention
of our postpaid and prepaid mobile customers.
SIO: Services in operation.
SMS: Short message service - the text based message service on mobile phones.
ULL: Unconditioned or unbundled local loop - the local loop is the copper wire that connect the Telstra exchanges to individual
properties. We are required to provide access to this wire to other operators. Other telecommunications providers can provide
customers with their own services, like broadband or a telephone service, by installing their own equipment in our exchanges and
connecting to the ‘loop’.
USO: Universal service obligation - ensures that all people in Australia have reasonable access, on an equitable basis, to the
standard telephone service and payphones.
VAS: Value added services.
WAN: Wide area network.
WBB: Wireless broadband. A wireless broadband SIO is defined as any customer with a BigPond® wireless device or a mobile
wireless broadband product on a plan with a data access fee of $29 or above.