I'm quite sure Optus choose to disable it so you can't switch it on yourself unfortunately. You can use alternatives like skype, Facebook messenger, whatsapp etc just not the native video calling
Hey @Vini, the handset does have a native 3G video calling feature but it's not something that we currently support. With the network introduction of VoLTE (voice over LTE) Samsung has actually discontinued support for 3G video calling on Optus handsets starting from Galaxy s7 and S7 edge. When it comes to video communication as @SamSam has advised, more dynamic OTT providers such as Viber and Skype do provide an all-round better video calling experience.
@Sprucekaboose, that's definitely a fair point. Essentially Samsung as well as Optus have shifted their focus towards newer technologies. The simple fact of the matter is legacy network features such as 3g video calling are becoming increasingly difficult to support. The majority of our handset partners do not support 3g video calling. 3G video calling is supported on Optus Samsung handsets up to the note 5 and Galaxy S6 Edge Plus.
It might be a matter of opinion but why enable a legacy video calling feature when Skype & other OTT service providers offer a far superior experience? In some markets Samsung does still support 3G video calling however this at the cost of losing other Network features such as VoLTE & WiFi calling.
Yes but who's talking about 3G Video calls, 4G is the standard now. Native support is important, who wants to be on a call and say "hold on, let's end this call and I'll call you back via skype", that is ridicolous. Apple supports Native Facetime calls whilst on a call. I cannot see the video call option on my S9+ with an optus sim however it's there when I insert other carriers' sims.