ACMA Media 
Release 
133 /2010 
 
 
Page 1 of 2 
25 October 2010 
 
ACMA asks, do phone numbers add up? 
 
The increasing use of mobiles, the impact of VoIP and the very wide utilisation of 
capped plans and bundling marketing practices are posing important questions for 
the way traditional telephone numbers are managed, according to the first of a 
series of issues papers released today by the Australian Communications and 
Media Authority. 
The ACMA administers the Numbering Plan, which sets out the rules for the use 
and administration of telephone numbers in Australia. This was last substantively 
reviewed in the lead up to 1997, when mobile phones were being introduced and 
Australia moved to ten digit phone numbers. 
Numbering is a key issue as we move to a more converged world, said ACMA 
Chairman, Chris Chapman. 
While the existing Numbering Plan has served Australia extremely well, it is now 
starting to fray around the edges. Many of its features date back well over ten years, 
during which time there has been tremendous change in the telecommunications 
and broadband market. 
The issues paper looks at the underlying structure of the Numbering Plan and 
several areas where service evolution is already putting pressure on traditional 
numbering-based approaches. Some examples include : 
 
VoIP (and other broadband-enabled services) now make it relatively easy to 
move a phone service across traditional number boundaries, a trend that is 
likely to increase as telephone services become broadband applications 
 
charging based on location and distance is declining in relative importance 
as many consumers move to bundled and capped plans 
 
mobile phones are increasingly the preferred device for phone calls, rather 
than landline phones (which phenomena raises questions about the 
treatment of calls to 1800 and 13 phone numbers, where mobile callers 
incur a higher charge, meaning that they are not free or local ratewhich 
charges are significant now that there are many more mobile than fixed 
services). 
The pace of change is if anything picking up. It is possible that the service provision 
environment may look significantly different in just a few years, Mr Chapman said. 
This will enable us to take full advantage of the many exciting new products, 
services and opportunities coming over the horizon, while ensuring appropriate 
safeguards for all users. 
I am determined we deal with this complex, but vital issue now so that we and our 
stakeholders have a keen awareness of this issue and hopefully a useful roadmap, 
as we all head into the broadbanded, fully digital world.  
 
 
 
 
 
ACMA Media Release
133 /2010 
 
 
Page 2 of 2 
For this reason, the ACMA has commenced a work program that looks at various 
aspects of numbering and the Numbering Plan and will be progressively releasing 
four papers over the coming months. 
The ACMA will hold workshops in November as part of broad consultations on its 
work program. 
Numbering has been central to the regulation and management of the 
telecommunications system and underpins many of the consumer safeguards in the 
sector. In the past, consumers have relied on phone numbers to tell them about the 
cost of calls and the location of the person theyre ringing. Call billing, the Do Not 
Call Register, handling of triple zero calls, security and policing, as well as premium 
number sales are all affected by the Numbering Plan. 
The paper identifies the pressures on the Numbering Plan and the impact this is 
having on ordinary Australians and the communications industry. 
It suggests the need to build a bridge between current uses and how 
communications services will be used in the near future, and asks what changes to 
the Numbering Plan may be needed. 
As part of the study, the ACMA is seeking views on ways that the Numbering Plan 
can or should be adapted to Australias 21st century requirements, including: 
 
asking some basic questions about the role that numbers can and should 
play going forward as a strategy for addressing policy concerns and issues 
in the convergent environment 
 
simplifying the present division of Australian phone numbers between more 
than 40 different types of communications services, including for mobile 
phones, landline phones, satellite phones and VoIP phones 
 
simplifying the geographic division of phone numbers for landline phones, 
historically used for calculating the cost of long distance/STD calls 
 
addressing concerns about the use of shared numbers and 
 
giving consumers an ability to recognise the cost of calls, whether from the 
number they are calling or by other means. 
The ACMA is seeking responses by 3 December 2010 to this paper, the first in a 
series of four dealing with pressures on numbering arrangements from users and 
providers of communications services. The paper is available at [URL]. 
Provisionally, the other three papers will seek to address numbering administration 
and institutional arrangements, including the role of numbers in industry taxation 
and charging arrangements; derivation of customer, location and service provider 
information from numbers; and information in numbers utilised by end-users.  
For more information or to arrange an interview please contact: Donald 
Robertson, Media Manager, on (02) 9334 7980, 0418 86 1766 or 
media@acma.gov.au. 
 
 
The ACMA is Australias regulator for broadcasting, the internet, radiocommunications and 
telecommunications. The ACMAs strategic intent is to make communications and media work in 
Australias public interest. For more information: www.acma.gov.au.   
 
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