While the resale of digital subscriber line (DSL)-based services using Telstra’s unbundled local loop (ULL) service is economically unviable for voice services, it has provided platform-based competition for broadband services. Many telcos have installed their own DSLAM infrastructure, enabling them to provide fairly high-speed internet services via ADSL2+. This regulatory framework related to ULL has encouraged investment and the number of broadband users with access to services has increased.
However, a key concern moving forward is that the investments in DSLAM infrastructure will become obsolete once Fibre-to-the-Premises (FttP) networks are in place. The development of the National Broadband Network (NBN) also invoked regulatory changes in relation to the transition from copper based (DSL) to fibre based infrastructure.