I tried to ring back the number (03) 6272 6001 but reached a silent voice mail

This man called me with a dubious indian accent on this number- he claimed to be from telstra and was asking me to turn on my computer and give information about my router. He called more than once the first time he hung up on me when I answered. I was suspicious- so I hung up, he called back continually and I answered again, I asked for his name and ID number, he gave me some fast name and number, I asked him to confirm where I lived and he told me where you live is F OFF!