I answered by listening only.
Probably SPAM because they hung up without saying who they were.

Caller: I don’t know

Adelaide number. I don’t know anyone there so this must be spam. Blocked number.

Caller: Indian call centre

Indian call centre

Caller: Prajeet

Tried to sell insurance, then switched to solar panels

Believe to be spam but couldn't understand what they were saying

Definitely a Scammer. Calls from hundreds of numbers registered to Australia's dodgiest telco NETSIP that refuses to comply with orders to notify ACMA about scammers because it impacts their profits. When returning the call there is a recorded message in poor English saying welcome to "customer service team". If you receive any calls from these people contact ACMA urgently and pressure them to take further enforcement action as once the scammer has your phone number you'll start getting anywhere up to 300 calls a month from a variety of different numbers including fake mobile numbers and interstate numbers, but all from the same scammers.

this number keeps calling with nobody on the other end. Same with (08) 7094 3366

Spam calls on investment

No message left so probably spam scam

(08) 7094 3367 Is an unknown caller, called them back and there voicemail is “thank you for calling customer service”. No business name or anything included. Definitely sketchy

Scammers
Blocked