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Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

I had a software update earlier today so assume CSC version was updated then.

Will order a new SIM and see what happens.

Thanks.
Posts: 109,091
Topics: 561
Solutions: 14,438
Registered: ‎04-04-2012

Re: 4g calling, VoLTE icon not displayed?

That's what I was wondering as your software was only released yesterday and I wasn't aware it had been rolled out yet.
But it is O2 version so everything should be working for you.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
Former Staff
Posts: 5,427
Registered: ‎18-04-2018

Re: 4g calling, VoLTE icon not displayed?

Hi @dougwzz98, it'll be really interesting to know how you get on with this going forward and if you make any progress smiley

 

Cheers @MI5 and @madasaf1sh for the advice!

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Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

Awaiting arrival of new SIM card. Will update when I get it and have done the swap.

 

Doug.

Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

Ever start something then wish you hadn't...

 

So new SIM arrived and swapped over yesterday evening, no problem. Phone worked fine, but still no VoLTE icon or any indication 4G calling was working. So I thought OK, I'll deactivate 4G and WiFi calling in my account, then reactivate it to see if that will kick it into life. Deactivate done online, usual blurb about request pending, all looked OK. 

 

This morning phone tells me "SIM not provisioned". No cell network connection at all. Now I'm sure I've done the 4G calling deactivate/reactive process before and it never disabled my SIM in this way (why would it?). So I call customer services on my landline who tell me yes, there is a request in process and it can take up to 24 hours to go through. They won't do anything until 24 hours has gone by, but from where I am it looks like something is 'stuck', and I'm dubious it's going to start working after this period without some sort of intervention. But there's nothing it seems I can get them to do until this period of time elapses...so I'll just restart the phone at intervals today and hope for the best!

 

Posts: 109,091
Topics: 561
Solutions: 14,438
Registered: ‎04-04-2012

Re: 4g calling, VoLTE icon not displayed?

Good luck but you’re correct in that it shouldn’t disable the sim completely.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

SIM has just reenabled so phone is now back on the network. 4G calling and WiFi calling are showing as inactive on my account. 

 

I think I'm going to leave things alone for the rest of today, and will try activating 4G calling and WiFi calling on my account tomorrow. Will update after I've done that. 

Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

So I have activated Wi-Fi calling and 4G calling on my account. SIM remained enabled and after a few hours the Wi-Fi calling and 4G calling toggles appeared in the settings menu. So far so good. Switch on the Wi-Fi calling toggle and the Voice over WiFI icon appears as expected. Switch on the 4G calling toggle and switch off WiFi so I'm on the cell network and...no sign of the VoLTE icon, just the usual 4G icon. So I'm no further forward at all.

 

I think the options are:

 

1: I'm completely misunderstanding how 4G calling is supposed to work. Maybe O2 don't raise the VoLTE icon at all, not if the service is available or even just during an actual call. This seems inconsistent as they *do* raise the Voice over WiFi icon as soon as you toggle that service on. 

 

2: Despite what the O2 coverage map says maybe 4G calling is not available in my area (although I do travel around a bit and even in central London I've never seen the VoLTE icon).

 

3: 4G calling just doesn't work as advertised, in my tests from another O2 phone which has 4G calling enabled (which also never sees the VoLTE icon) a voice call causes both phones to drop from 4G down to H (not supposed to happen during a 4G call with 4G calling active).

 

I can't think of anything else to try. Thanks for the assistance so far, I may just give up at this point as I think I've exhausted all the avenues I can think of to prove that this works!

 

 

 

 

Former Staff
Posts: 5,427
Registered: ‎18-04-2018

Re: 4g calling, VoLTE icon not displayed?

Hi @dougwzz98, sorry to read you're still stuck with this confused I'll send you a Private Message to get some more details and see if there's anything we could do at all at this point to get this resolved for you!

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Want to chat with other fellow-minded members? Head to our Off-topic section for some interesting chit-chat.
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Welcome to O2! - New to O2? Find out all you need to know to get started!


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Level 2: Apprentice
Posts: 32
Registered: ‎15-04-2012

Re: 4g calling, VoLTE icon not displayed?

An update on this, I think I'm just not in right situation for 4G calling to activate. It seems it's very dependant on the signal strength of both the 4G and 3G networks in a given location, and theres no way with O2's implementation of it to 'force' the situation. I gather other networks provide settings to get some control over this (e.g. to always use VoWiFi when available, whereas O2 automatically switch VoWiFi on and off depending on the 4G signal strength from moment to moment and theres no user control available). Similarly I think other networks allow you to prefer 4G calling over 3G, but O2 again seem to handle this automatically based on signal strength (and maybe network congestion and other factors).

 

I can force VoWifi to activate all the time by going into flight mode and then just turning on my WiFi connection.That works fine, but it seems there is no equivalent test for VoLTE short of turning off the 3G network in my areawink
 

So I'll keep on eye on it as I travel around and see if one day I get that voice call where my 4G connection also stays activeBouncy

 

Thanks to all and especially Emilie for the offline assistance.