VoLTE = your device must be capable + your network must be capable + your LTE coverage
HD calls on VoLTE = your device must be capable + your network must be capable + your LTE coverage + recipeint LTE coverage + recipient network must be capable + recipient device must be capable
The only limitation of the VoLTE calling or HD calling is that the receiving end also needs a VoLTE support. Both the devices should support VoLTE to make HD calls.
https://www.mobigyaan.com/facts-about-volte
Other than phone supporting voLTE,one thing to note is both callers on either side is connected to VOLTE.
So lets say both phones support voLTE. But the caller at (City) calls out with voLTE signal to receiver at let's say (Tuas) without voLTE signal, you won't get the HD digital call effect.
https://forums.hardwarezone.com.sg/mobile-c...sg-5759568.html
Celcom/Xpax Fan Club v4, #NoKelentong
Mar 7 2020, 01:49 PM
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