Silent hang-ups after pickup grab attention more than ignored voicemails ever could. These patterns scream classic spam tactics, where callers probe for active lines without committing to a pitch. No messages left, plus that eerie Optus 'disconnected mobile' recording on callbacks, points to automated robocalls masking their origins—likely from scammers or telemarketers dodging traceability. The 03 area code ties to Australia, but mismatches like 'police trace' claims or fake ASG reps add red flags. Block the number immediately via your phone settings or carrier app; report to ACMA or Do Not Call Registry to curb the nuisance. If they persist, consider a call blocker device for peace.
Numerous calls arrive from a series of numbers—9001 8390, 8395, 8396, 8397, 8398, 8320, 8321, 8326, and 8328—creating a persistent nuisance
It keeps ringing without stopping.
Received a call with no voicemail left.
After three rings the call cut off without leaving a voicemail.
Received a call early afternoon; no voicemail was left.
There was no voicemail left.
I located a Delonix Solutions in WA, but couldn't spot any 03‑area‑code numbers, so I marked it as spam.
A spam call left no message, and a callback played a message stating 'Optus advises this mobile has been disconnected,' indicating the number isn’t even a mobile—highly suspicious.
This appears to be a police trace line.
When I answered, there was no audio and the call was quickly disconnected.
A police trace was mentioned in the call.
Someone claimed to represent ASG, a semi‑government entity not subject to Do Not Call rules.
When I answered, the line was silent and the caller disconnected immediately, which feels suspicious.
Unsolicited spam.
Received a notice stating, "Optus advises that the MOBILE number you have dialled has been disconnected."
Identical to the previous—no voicemail left.
A notice from Optus indicated that the mobile number dialed has been disconnected, confirming the number is no longer active
Probably spam; they called but didn't leave a message.
Received a call, no voicemail left, looks pretty spammy, FYI
