Today get:
Dl speed 18mbps...

Are you sure? I can't test until I get home tonight. But be careful, you might be using the balance of your free data or hispeed data you might have purchased before.

I'm using unlimited plan.

Anyone using one plus 6 here?

Do you guys have the guide how to set volte for the phone?
Does it drain battery if I use volte in my ohone?

1: Go to the dialer and enter: *#800#
2: Select Enter
3: Go to Logkit
4: Swipe down to function switch
5: Tick VoLTE, VoWiFi switch
6: Reboot

No, it will not drain the battery from my experience.

Thanks man!

Do you mind to check:
The "QMI Log" swchange is tick or untick in default setting?

I think I've missed tick something

I've done these setting but the internet still converted into 3g when I make phone call.

Is the phone on the other side support VoLTE?

Volte can only works (which means my internet retain as 4G) if the device that received my call is supported volte?

Which means both phone also gonna support volte? (Caller and receiver)

Yes, both side phone must support VoLTE,

If you have Unifi Fibre connection at home then you can try calling your home phone number to test VoLTE. The call will go through fast and the call clarity is clear.

Thanks again, I've few questions:

1) what's is vowifi?
2) why my "status bar" of my phone still not showing any volte icon? I've turn the volte icon on in the "icon manager" setting
3) I've checked that volte option is available in the "enhance communication". It can be tick to turn on, is this means I already done the volte setting?
If yes, why cannot see any "volte icon" in the status bar?

1. VoWiFi a.k.a. WiFi Calling allows you to make and receive calls over WiFi, letting you stay connected even when there is limited network coverage or none at all.
2. Have you rebooted your phone.
3. If you tick to enable, then it means VoLTE is on.

I've reboot my phone and tick both of volte and vowifi.
But still no icon showing in the status bar..

I am also not sure now, because right now I am using different phone model.

Maybe Android OS update changed something, or Unifi mobile stopped supporting specific devices 🤔

Sad to hear that..
Which phone you're using that can support volte?

Currently using Vivo V11 on Unifi Mobile line.

Nice can get volte
The vivo os good?

Now my phone, Vivo V11 is running Android Pie (9). So far the OS is running stable without any hiccups.

Do you mind to share the apn settings of your phone?
I think tm tweak something with the son so unsupported device all cannot using volte.