Does anyone know of a carrier that supports both overseas? I bought a vodafone sim recently and its geoblocked by ip & tower. So i can't use my sim to call unless i buy a roaming pack.
Is this the same for all optus? What about telstra and others that use telstra network?
From what I've read of other forum posts, Telstra and it's virtual network operators are the only ones that allow you make calls via VoWIFI while overseas without a roaming pack.
https://www.ozbargain.com.au/node/902461
https://www.ozbargain.com.au/comment/15908597/redir
https://www.ozbargain.com.au/comment/15909691/redir
https://forums.whirlpool.net.au/thread/96yz6m0l#r71938853
However someone here noted that Boost said " not supporting wifi calling from overseas back to Australia." so I guess the terms may change at anytime.