Conditional Forwarding with VoLTE

[Nezgar]

I was converted/enabled for VoLTE service with Public Mobile today. Indeed, I remain on LTE or LTE+ while on a call now. Great! Call setup is imperceptibly faster and call quality is exactly the same, so most people won't notice any difference. But if this means I can reliably make calls if I travel to the USA now that will be a major improvement.

Anyhow, the only limitation I've found so far is I cannot set conditional call forwards. ie (When busy, when unavailable, and when busy). Previously these could be set either in the call forwarding menu of the phone app, or manually using the *61, *62, and *67 codes. If I try to set any of those through the menu or through those codes I now only receive an error "Connection problem or invalid MMI code."

For those who have been converted/enabled for VoLTE service, could you also test to see if you can reproduce this? Basically it means now that I have been provisioned for VoLTE service, I can't use a 3rd party voicemail service like YouMail -- for now at least.

test by dialing:
*61*12504125922#

If it ends up working, you can undo it with:
##61#

(example number is a test number from http://thetestcall.blogspot.com/ )

I opened a ticket with CS agents and they just tell me to use the *61, *62, *67 codes as usual, so maybe they're not aware of an issue with this function on VoLTE yet so I thought I'd ask for further verification/testing here.

Thanks! - N

[LitlLdy]

---

@frankysplace wrote:

Please correct me if I am wrong. When turning off VoLTE you are back on the 3G network once back onto the 3G network you can use the gsm codes for call forwarding. How ever while on the 4GLTE network for voice these gsm codes no longer work. I googled this issue call forwarding VoLTE and it was suggested to turn off VoLTE. Maybe this issue has been noted on other networks like T-Mobile.

---

---

@frankysplace wrote:

Please correct me if I am wrong. When turning off VoLTE you are back on the 3G network once back onto the 3G network you can use the gsm codes for call forwarding. How ever while on the 4GLTE network for voice these gsm codes no longer work. I googled this issue call forwarding VoLTE and it was suggested to turn off VoLTE. Maybe this issue has been noted on other networks like T-Mobile.

---

@frankysplace , I leave my iPhone on LTE to use conditional call forwarding to setup YouMail. Worked fine after Public Mobile fixed the broken issues on their end.

[frankysplace]

Yes it worked! Yes switching settings back to 3G then turn on and off airplane mode was much quicker then restarting. Then to get back to VoLTE I enabled LTE in cellular setting toggled airplane mode on and off. When 3G is retired we may not be able to use YouMail. Reading online conventional call forwarding over VoLTE is an issue because of the dial codes are gsm codes that only work on 3G. If there is someone more technical maybe that someone could look into this more. (Here is something peculiar when I enable LTE without toggling airplane mode or restarting the iPhone it retains it forwarding settings to YouMail) P.S. I think once I turn my iPhone off or reset it, or toggle the airplane mode switch I will lose my conditional call forwarding settings to YouMail. 

[dust2dust]

@frankysplace- Can you test whether airplane mode is sufficient? Rather than doing the whole restart.

[frankysplace]

Did you restart your iPhone after switching it to 3G? You also have to restart your iPhone when switching back to LTE. However toggle airplane mode switch on/off is faster.

[siberianquirk]

@frankysplace I have an iPhone SE 2020 and followed your instructions to force the phone to 3G. Activation for YouMail still fails for me on 3G. 

[frankysplace]

Thanks for this I am using an iPhone 8 Plus. I wonder why this is the case. I wonder if there are any other iPhone user’s experiencing this. Here is what YouMail says for the iPhone this where I got the idea from. It seems others are having the same issue on other networks when enabling VoLTE. YouMail says….

1. Go to your iPhone's Settings app
2. Go to "Cellular"
3. Click "Cellular Data Options"
4. Tap "Enable LTE"
5. Click "Off"
6. Turn on and off airplane mode 
7. Start Youmail. 
   Remember to toggle airplane mode on/off to switch back to LTE.

[dust2dust]

@frankysplace- In my case, I don't have volte enabled on the account (that I know of) and the toggle isn't there and calls use 3G anyway and I can't use the dial codes in either 3G only or LTE/3G/2G. So your findings are apparently not universal.

[frankysplace]

Please correct me if I am wrong. When turning off VoLTE you are back on the 3G network once back onto the 3G network you can use the gsm codes for call forwarding. How ever while on the 4GLTE network for voice these gsm codes no longer work. I googled this issue call forwarding VoLTE and it was suggested to turn off VoLTE. Maybe this issue has been noted on other networks like T-Mobile.

[softech]

@frankysplace   again with this settings, you left your voice on 3G?

[frankysplace]

Here how I got my You Mail to work after being upgraded to VoLTE on my iPhone 8 Plus. In settings go to cellular. Then cellular data options, tap voice and data and select 3G. Then reset your iPhone. Then, this for the the Toronto You Mail forwarding number. You can replace with your local You Mail forwarding number. Dial this number in your dialer *004*6476941780*30#. You can set the number of rings by setting the time in seconds. I chose 30 sec *30 After that set your data options back to LTE and reset your iPhone. I think the issue is these are gsm codes thus they only work if you are on the 3G network. I can confirm that you have to turn off VoLTE in order to do conditional call forwarding. 

[LitlLdy]

---

@Nezgar wrote:

---

@LitlLdy wrote:

*004*5068028520#

I can use the star codes to check what my voicemail # is along with all the other star codes.

---

Thanks for the details. I hadn't tried setting it with *004 actually (which does *61/*62/*67 all together) but alas when I try now I still just get "Connection problem or invalid MMI code". Are you on an iPhone? I'm Android. Maybe a difference there too. I don't have an iPhone to test my SIM in at hand.

---

@Nezgar , yes I’m using an iPhone. All I will use anymore 🤣. I used ##004# to double check that it would also undo/reset it which it did.

Sorry for the late reply I’ve been sick since last week so I’m dragging!

[Nezgar]

---

@John_Hey wrote:

do you know how it was fixed? I still have issue

---

@LitlLdyindicated above they were able to get it resolved by pressing CS Agents to get it fixed for them.

[John_Hey]

do you know how it was fixed? I still have issue

[Nezgar]

---

@LitlLdy wrote:

*004*5068028520#

I can use the star codes to check what my voicemail # is along with all the other star codes.

---

Thanks for the details. I hadn't tried setting it with *004 actually (which does *61/*62/*67 all together) but alas when I try now I still just get "Connection problem or invalid MMI code". Are you on an iPhone? I'm Android. Maybe a difference there too. I don't have an iPhone to test my SIM in at hand.

[LitlLdy]

---

@Nezgar wrote:

---

@LitlLdy wrote:

---

---

@dust2dust , I had to create a support ticket & push to get mine fixed! I told them it broke when VoLTE was enabled on my account 3 days ago but used to always work! I can give up on some things but not the things I use & need! I can be pretty stubborn! Please create a ticket & ask them to send it to tech support to fix it on the back end for you.

Edit: I need to say I’m pretty happy its now fixed! I think I’m pretty easy to make happy! 🤣 Fix what used to always work!

---

I will consider contacting them if I am still unable to set custom conditional forwards after my return from USA travel. 🙂 In the pre-VoLTE world, conditional forwards never worked anyway while roaming in the USA with Public Mobile.

I'm curious though in your current state if you are able to configure the three conditional forwards at will using either the menu options in the phone app, as well as with the direct *61, *62, *63, *004 codes? As well as if you let the YouMail app do the configuring for you?

Thanks - N

Edit: I'm also using it with a "borderline modern" 2017 BlackBerry KeyONE running android 8.1, so I'm chuffed that PM is letting me use VoLTE at all. I don't want to jinx it. 🙂

---

@Nezgar , I can only call forward 1 phone number in my iPhone settings. I used the codes using the dialer on the phone to number for conditional call forwarding for the YouMail #. Then activated YouMail. Thats the only call forwarding I tried. 

Edit:
The YouMail # I used conditional call forwarding to is 

*004*5068028520#

I can use the star codes to check what my voicemail # is along with all the other star codes.

[Nezgar]

---

@LitlLdy wrote:

---

---

@dust2dust , I had to create a support ticket & push to get mine fixed! I told them it broke when VoLTE was enabled on my account 3 days ago but used to always work! I can give up on some things but not the things I use & need! I can be pretty stubborn! Please create a ticket & ask them to send it to tech support to fix it on the back end for you.

Edit: I need to say I’m pretty happy its now fixed! I think I’m pretty easy to make happy! 🤣 Fix what used to always work!

---

I will consider contacting them if I am still unable to set custom conditional forwards after my return from USA travel. 🙂 In the pre-VoLTE world, conditional forwards never worked anyway while roaming in the USA with Public Mobile.

I'm curious though in your current state if you are able to configure the three conditional forwards at will using either the menu options in the phone app, as well as with the direct *61, *62, *63, *004 codes? As well as if you let the YouMail app do the configuring for you?

Thanks - N

Edit: I'm also using it with a "borderline modern" 2017 BlackBerry KeyONE running android 8.1, so I'm chuffed that PM is letting me use VoLTE at all. I don't want to jinx it. 🙂

[LitlLdy]

---

@dust2dust wrote:

I'm also not in a rush. I was just reporting back for all readers that maybe it still won't work for them. I can wait for all these things to settle down.

I got a bravo from J_PM for my inquiry about filtering devices for volte eligibility. ?? How about a reply. It should be all capable devices. Mine is, from another service.

Adding - ah! this stupid white box that makes me wait to do a tag and then I forget. @LitlLdy 

---

@dust2dust, a reply would be nice. I agree it should be for all capable devices! My 6S is compatible but not with Public Mobile!

[dust2dust]

I'm also not in a rush. I was just reporting back for all readers that maybe it still won't work for them. I can wait for all these things to settle down.

I got a bravo from J_PM for my inquiry about filtering devices for volte eligibility. ?? How about a reply. It should be all capable devices. Mine is, from another service.

Adding - ah! this stupid white box that makes me wait to do a tag and then I forget. @LitlLdy 

[LitlLdy]

---

@dust2dust wrote:

@LitlLdy- Whatever they did is not network-wide. The dial code or dialer still doesn't work for me.

---

@dust2dust , I had to create a support ticket & push to get mine fixed! I told them it broke when VoLTE was enabled on my account 3 days ago but used to always work! I can give up on some things but not the things I use & need! I can be pretty stubborn! Please create a ticket & ask them to send it to tech support to fix it on the back end for you.

Edit: I need to say I’m pretty happy its now fixed! I think I’m pretty easy to make happy! 🤣 Fix what used to always work!

[Nezgar]

---

@LitlLdy wrote:

@Nezgar , I requested a support ticket & it was sent to tech support CSA Diane which she sent me a text message to my phone for troubleshooting & information. My call forwarding is now worked again!

Edit: Also, I am now using YouMail again! 😃

---

Interesting. Well, I can live without YouMail for a little while -- I think I'll let the dust settle before I bug the CSA's myself again. I'm mostly just happy that VoLTE calling is working, and the prospect of reliable calls when I travel to the USA in the near future. Maybe the conditional forwarding issue will sort itself out eventually as they work through things on the back end.

[dust2dust]

@LitlLdy- Whatever they did is not network-wide. The dial code or dialer still doesn't work for me.

[LitlLdy · Accepted solution]

@Nezgar , I requested a support ticket & it was sent to Diane from tech support which she sent me a text message to my phone for troubleshooting & information. My call forwarding is now working again!

Edit: Also, I am now using YouMail again! 😃

[hTideGnow]

HI@Williamlu1166     iPhone 8 and above is supported on VoLTE already

Make sure you change your network to  4G   (again, 4G is LTE) 

[Williamlu1166]

@dust2dust Yes, it's set to LET. No VoLET shows up below.

[Williamlu1166]

@hTideGnow iPhone 8 plus.

[dust2dust]

@Williamlu1166- And it's set to LTE? If you had volte enabled on the account then the toggle would show up below.

[hTideGnow]

HI @Williamlu1166   What iPhone model you have?

[Williamlu1166]

@dust2dust I can't see VoLTE on my iPhone only 3G, and LTE. Maybe it's an older version of IOS.

[dust2dust]

@Lieux- Oh. I thought you were talking about the subject line previously. @Williamlu1166 - nevermind for now. Although come to think of it really nevermind as I think the *5005* dial code is for the long press 1 to get to voicemail or however iphones do it.

[John_Hey]

@Lieux  unconditional call forwarding (21) works for me.

conditional forwarding is not working (61,62,67).

see this:  https://publicmobile.ca/en/on/get-help/articles/call-forwarding