- Uncertain
One contributor reported a silent call from 04 0149 6708 (0401496708) followed by an automated voicemail. Optus mobile number flagged for suspicious activity.
Silent Call and Robocall Reports for 04 0149 6708
A single contributor has reported receiving a call from 04 0149 6708 (also written as 0401496708) displaying characteristics of both a robocall and silent call attack. The call connected, delivered complete silence, then automatically triggered a voicemail message with a human voice. This pattern is typical of scammers testing whether a number is active before launching a follow-up campaign.
What Happened During the Call to 0401496708
The contributor who answered the call from 04 0149 6708 encountered no greeting or voice on the initial connection, only silence. Rather than disconnecting, the call proceeded to leave a voicemail with a human voice message. This two-stage approach, where silence precedes a voicemail, suggests automated systems designed to identify active numbers and create callback opportunities.
Why This Pattern Matters
Silent calls followed by voicemail messages are a known scam tactic. The silence serves to verify that a real person answered. If the call connects to a person (rather than a voicemail system), scammers add the number to their target list for subsequent campaigns. The voicemail may be intentionally vague or designed to prompt a callback to an unrelated number, or it may establish initial contact before follow-up calls attempt to deceive or pressure the recipient.
What to Do If You Receive a Call from 04 0149 6708
If 0401496708 calls you:
- Do not: Answer unknown numbers, return any callback attempts, or leave voicemail responses
- Do: Let the call go to voicemail, block the number immediately if it calls again, and do not return the call under any circumstances
- Do not: Assume silence means a wrong number or technical fault - silent calls are deliberate
- Do: Check your voicemail only if you recognise the caller ID; if 04 0149 6708 left a message, delete it without listening if possible
How to Report 04 0149 6708
If you receive repeated calls from this number, report it to Australian authorities:
- Report to the Australian Communications and Media Authority (ACMA) at acma.gov.au - they investigate suspicious and harassing calls
- Report to Scamwatch at scamwatch.gov.au if the call appears to be part of a scam
- Block the number in your phone settings to prevent future contact
- If you have Optus mobile service, contact Optus directly to report the suspicious activity from 0401496708
- Report the incident on Reverseau to help other Australians identify this number
Help others by sharing your experience with 0401 496 708!
WRITE A REVIEWRatings Distribution
What Our Users Reviewed
Called, absolute silence, then got voicemail with a human voice
Help others by sharing your experience with 0401 496 708!
WRITE A REVIEWFrequently Asked Questions
What does a silent call followed by voicemail mean?
A silent call that leads to a voicemail message is typically used by scammers to verify your number is active and monitored by a real person. The silence phase tests the line; if you answer (rather than a machine), your number is flagged for future scam campaigns. The voicemail may be a callback prompt or the start of a scam sequence. Do not return any calls to 04 0149 6708.
Should I return a call to 0401496708 if it left a voicemail?
No. Never return a call to 0401496708 or any unknown number that left only silence or an unclear message. Returning the call confirms your number is active and may connect you to a scammer. If the message is important, the caller will identify themselves and provide a legitimate reason to contact you through official channels.
Is 04 0149 6708 a legitimate Optus number?
04 0149 6708 is registered to Optus mobile service, but that does not mean it is being used legitimately. Scammers frequently spoof or use stolen mobile numbers. The silent call pattern and automated voicemail behaviour reported for 0401496708 are consistent with scam tactics, not legitimate customer service.
What should I do if 0401496708 keeps calling?
Block 04 0149 6708 in your phone's contact list immediately. Most modern phones allow you to block calls and prevent them from reaching your voicemail. If the calls continue after blocking, report the harassing calls to ACMA at acma.gov.au and to your mobile provider.
Can I report this number to my mobile provider?
Yes. Contact your mobile provider and report 04 0149 6708 as a suspicious or harassing number. If you use Optus, you can report it directly to their customer service. They may investigate and take action against the account associated with 0401496708 if it is being misused.
What is a robocall and why is 0401496708 flagged as one?
A robocall uses automated systems to dial numbers and deliver pre-recorded or auto-triggered messages. The call from 04 0149 6708 appears to have used automated routing to connect, deliver silence, and then trigger a voicemail response, consistent with robocall infrastructure. These calls are often launched at high volume to test active numbers before scam campaigns begin.