Calling Number Display (CND) allows the people you call to see your telephone number displayed on the screen of their telephone. It applies to both mobile phones and landlines. If you don't have a silent line, unlisted number or have not blocked CND, the people you call will generally be able to see your number on their telephone screen.
The CND feature has important privacy implications because there may be times when consumers don't want their number identified to the person they are calling. Recently, the Calling Number Display Code was reviewed by the Communications Alliance. A number of changes were proposed, including downgrading the Code to a Guideline, which would not be enforceable by the Australian Communications and Media Authority (ACMA).
ACCAN made the following recommendations in its submission on the review of the CND Code:
- Maintain the status of this document as an enforceable Code, rather than downgrading it to a Guideline with no enforceability.
- Keep a number of requirements for service providers to inform customers, such as that CND cannot be blocked when calling emergency services, and that customers are free from contractual obligations if a technological change means that CND blocking or enabling is no longer supported on the provider's network.
- Include references to relevant Australian Privacy Principles Guidelines to aid compliance with the Principles.
- Clarify how the Code applies to VoIP and NBN voice services.
Download: 
ACCAN's submission on the CND Code review325.71 KB
Download: 
ACCAN's submission on the CND Code review806.04 KB