Traffic Class 1 (voice)
TC1 is primarily used to support voice services - specifically Voice over IP (VoIP).
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Traffic Class 2 (data)
TC2 is designed to provide access to high performance data for applications and services that require consistent, predictable download and upload speed requirements.
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Traffic Class 4 (internet)
TC4 is primarily for general internet and standard data services.
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Enhanced Service Level Agreements (eSLA)
eSLAs means nbn will provide a higher level of support to your provider, who in turn should be able to provide a better level of support to you.
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Special Services
Special Services include Ethernet Lite, Broadband Digital Subscriber Lines (BDSL), and Integrated Services Digital Network (ISDN) phone and internet lines.
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business nbn™ Enterprise Ethernet
business nbn™ Enterprise Ethernet has been developed to offer a simple product construct, allowing fibre-based access across your nbn™ connected sites.
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Does your business use Special Services?
Please note that affected legacy data (eg ATM, Connect IP) and managed Voice (e.g. Customnet) services must also be migrated before the applicable disconnection date to keep these services active.# The first set of these affected services must be migrated by November 2018 to keep affected services active.# Please see the Special Services page for more information.

Does your business use Special Services?
Please note that affected legacy data (eg ATM, Connect IP) and managed Voice (e.g. Customnet) services must also be migrated before the applicable disconnection date to keep these services active.# The first set of these affected services must be migrated by November 2018 to keep affected services active.# Please see the Special Services page for more information.