Fraud pest people, also have different lines that are similiar

Caller: Female with an Indian accent

unknown Indian female using dodgy tactics hoping I'll reveal my Amazon banking details over the phone. Scam beware!

Caller: Commonwealth Bank

Caller introduced herself from Commonwealth bank wanting to confirm a financial transaction. Terminated call!

Thank you for letting me know

Caller: Supposedly Telstra

Noisy sounding call center. Sub-continent accent. Melbourne number.

Claimed they were from Telstra and started talking some nonsense about my internet dropping down and going from private IP to public IP.
Absolute nonsense trying to techno-babble me. Firstly I don't use Telstra, secondly if I did, they could care less about my internet setup. Thirdly, do you even know how the internet works? We all have public IP addresses for modem/routers because that's literally how devices connect to each other over the internet.

Don't be fooled. If anyone calls you claiming to be some service, say goodbye, and if you think it could be legit, get that company's real phone number and call them yourself and ask them about the call. 99.9999% it's a scam.

Scam. Lots of loud chatter in background in another language (Asian origin)

Probably phishing as most calls are returnable; this one failed

Amazon scam to get into your account