Vodafone NZ EWiFi calling stopped on Samsung S21 Ultra

Forums › One NZ (including Farmside) › Vodafone NZ EWiFi calling stopped on Samsung S21 Ultra

davisg

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#296286 4-Jun-2022 21:22

Strange problem. WiFi calling has worked on my phone perfectly since the start of the year but failed on my Samsung this week.

It seems to be related somehow to the SIM Card Manager displaying "Unknown Number" for my SIM. Same issue whether I put the SIM in the SIM 1 or SIM 2 slot.

I can occasionally get the SIM Card Manager to display my phone number by switching the SIM off then on again, or removing and re-inserting it, AND when the SIM card manager displays my number, WiFi calling works again (displaying the WiFi Calling icon at the top of the home page). But it doesn't last. After a few minutes the SIM Card manager again displays "Unknown number" and WiFi calling fails again and the icon disappears from the Home Page.

Any ideas from anybody? Some sort of authorisation issue? I did get VF to swap out my SIM today but that didn't fix the issue.

GD (Hamilton)

MaxineN

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#2922814 4-Jun-2022 22:05

Can you try resetting network settings? This will clear everything related to mobile network and wifi network settings and should download a fresh carrier package.

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davisg

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#2922817 4-Jun-2022 22:21

I found out how to reset the network settings and did that, it didn't restore WiFi calling but now I have some hours of reloading all the bluetooth and WiFi connections I had... Lucky its a holiday weekend!

GD (Hamilton)

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#2922818 4-Jun-2022 22:34

Maybe it is a issue on the carrier side and not related to your handset

MaxineN

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#2922819 4-Jun-2022 22:35

Hmm that’s a bummer normally it would fix most issues relating this. I would log a fault with VF.

Linux:
Maybe it is a issue on the carrier side and not related to your handset

Possibly. I haven’t heard of anyone else with an S21 series having the same issue as of late.

Would still advise OP to log a fault.

Although this is giving me shivering reminders of what happened to the S20 series
https://www.geekzone.co.nz/forums.asp?forumid=97&topicid=271804

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#2922820 4-Jun-2022 22:39

Further to this what EWiFi calling?

MaxineN

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#2922821 4-Jun-2022 22:40

The E key is very close to the W…

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MaxineN

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#2922843 5-Jun-2022 10:18

Okay my tired brain is no longer tired. Does wifi calling consistently work when the phone is in airplane mode or no/very low signal strength?

It not showing your number is weird but wifi calling only kicks in when the above conditions are met.

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davisg

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#2922847 5-Jun-2022 10:53

MaxineN: The E key is very close to the W…

Yes, sorry the E was a typo, I can edit the body but not the title of the post!

I'm going in to my workplace today where WiFi calling has always worked to see if it still works on this phone. That will tell me if I have a problem with my WiFi or if it is my phone or as suggested some sort of account config issue.

The issue about the phone number not showing up in the SIM Card Manager is a known Android thing which usually has no consequences, but I have not seen any reports of it coming and going like this.

GD (Hamilton)

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#2922853 5-Jun-2022 11:06

The number not showing up is not related to the WiFi calling issue