As what
@beyonder researched, yeah, can only place calls back
- to Singapore
- to a local number where you are roaming (in my case, Malaysia)
network volte is only relevant when we are roaming in the country. So in this case, if one with eight line goes to indo, one cannot place or receive through native phone apps.
what i did was initiating a phone call to Indo (a third country, in this case) when I was roaming in Malaysia. It doesn’t work.
i was curious abt simba, so i used simba to call an indo number while i was in Malaysia, and the call was successful.