Caller: Indian voice, said he was from Telstra

He said my phone and internet was insecure and other people were accessing it. It was actually my 84yo Mothers phone which she rarely uses and never the internet. I told him to "pull the other leg" which prompted him to swear at me and hang up.

Called and no answer hung up

Caller: Scam

Claimed to be telstra saying IP is public and asking me to check my IP said I was busy they hung up

Hung up when I answered