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Mi 10/Pro

[Q&A] VoLTE issue (o2 Germany)

2020-04-21 00:18:07
456 8
On my Mi 10 global i cant use VoLTE with my o2-card (Germany). The Option is visible and activated, but no symbol is shown in the Statusbar. All incoming calls are "unknown Number". Any Solution?
2020-04-21 00:18:07
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Dear Mi Fan,
    Please, clear data for Phone & Dialer app and in Contacts settings, click the option 'Rebuild Index Data" & let it finish. Also, try merging the duplicate contacts, as the same number, saved with two different names in Contacts  is displayed as a number only. Hope it'll fix your issue.
2020-04-24 15:43:00
Always believe that something wonderful is about to happen!

Rookie Bunny

1712201762 Author | from Mi 10


ive tried your way, but there ist no "rebuild Index" Option. there is no Double Number Problem, i am trying to Call me from 2 different phones and both are the Same result "unknown Number"
2020-04-24 16:12:58

Rookie Bunny

1712201762 Author | from Mi 10


i think there is an IMS Problem. i Made a Screenshot from the IMS-Status in *#*#info#*#*
one is with "VoLTE active" one without.
2020-04-24 16:18:31
I have the same phone (Mi 10), same provider (o2 Germany) and unfortunately the same issue. Is there a fix to this?
2020-04-27 15:09:16

Master Bunny

1634342619 | from MI 9


No issues with my Mi 9 on o2/1&1. Both VoLTE and VoWIFI works. Good luck. I used to have a Mi MIX 2S and had VoLTE and LTE connectivity issues and Xiaomi never fixed it.
2020-04-30 20:49:54
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