Framework proposed for NBN telephony

Draft Paper Released for Public Comment

Communications Alliance, the peak body for the Australian communications industry, today released a definition of the wholesale telephony services expected to be available via the National Broadband Network. 

The draft paper, titled National Broadband Network Wholesale Service Definition Framework – Telephony Access Service, provides a framework to describe the wholesale telephony services that could be offered over the National Broadband Network.   It is anticipated this framework will be used by wholesale and retail service providers as well as suppliers of telephony and network equipment.

Developed by the Communications Alliance NBN Project’s Wholesale Services Working Group, the paper considers architecture options for telephony, signalling protocols, telephony features, and codecs for telephony services.  It specifies the telephony features that will need to be supported by the NBN wholesale service, including Calling Line Identification, the National Relay Service, TTY (teletype) services, and Calling Number Display.

Communications Alliance CEO John Stanton said:

“This paper will help define the telephony services to be offered to end users and ensure that consumers can be confident that their telephone services will migrate smoothly to the NBN.  It sets the scene for the transformation of Australia’s telephony environment from copper wire to fibre.  I thank the Wholesale Services Working Group for their commitment and effort in producing such a detailed and important contribution to Australia’s broadband future.”

The Telephony Access Service paper is focused on the access link from the end user premises to a point of interconnect, with the retail service provider taking responsibility for long haul transport from the point of interconnect and the switching of calls.

The draft National Broadband Network Wholesale Service Definition Framework – Telephony Access Service paper is available from the Communications Alliance website at:

Communications Alliance invites interested parties to comment on the draft paper and submissions are due by 5pm on Friday 25 June 2010.  Responses will be published on the Communications Alliance website.

The Communications Alliance NBN Project was established in July 2009 and includes seven working groups: NBN Reference Model; Wholesale Services; Early Stage Deployments; End User Premises; Operational; Technical; and End User Migration. 



Communications Alliance is the peak body for the Australian communications industry.  It presents a unified voice for its members in public policy, facilitates industry solutions to industry issues, and provides up-to-date information on industry issues.  Communications Alliance is also leading the industry's response to the National Broadband Network implementation.  For further information see