Question T-Mobile - Visual Voicemail

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hadesflames

Senior Member
Dec 23, 2011
66
48
OnePlus 9 Pro
So just right off the bat, I know that T-Mobile are assholes and they setup their voicemail to only work by calling in or using their ****ty proprietary app.

That said, I get a vague sense that there probably shouldn't be a lot stopping someone that has root access and maybe a custom rom from fixing the default visual voicemail feature included in the google phone app to get it working with T-Mobile anyway by figuring out what exactly it is the default app needs to do to make T-Mobile think it's their app that's connecting?

Wondering if anyone knows if that's something I could potentially look forward to in the future because quite frankly I hate calling in to get my voicemails and I hate their app. If I had to choose between one of those 2 options for voicemails and just straight up disabling voicemails all together for my line, I'd picking disabling voicemails.
 

notrock

Senior Member
Mar 14, 2008
212
5
Is this a new change? I have MetroPcs and visual voicemail was working on my 5T running android 9, then it stopped working when I switched to the 9 Pro.
 

luckylui

Senior Member
Aug 14, 2010
4,543
551
Chi-Town
OnePlus 9 Pro
VVM working fine for me on the 9 Pro coming from the 7 Pro.. I'm actually on Premium, not sure how that happened since I don't remember signing up for it lol.
 

netgar

Senior Member
Jan 14, 2012
1,051
121
Guys, have you tried that one?
 

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May 17, 2021
47
12
LineageOS
Not to beat a dead horse here but this is where I am at. I know T-mo will not provision VVM unless you use theirs. I am running an unlocked OP9 LE2125. When I got to settings and look at VVM in the google phone app, it has carrier blank and T-mo voicemail number greyed out. What I am currently attempting to do is look at the code and see if i can change that number. I currently got a google voice number and I know people do not want to use google voice, they are simply trying to use the VVM without using T-mo. I am trying to see if i can find at least a work around until Lineage OS for OP9 is released. I currently contacted T-mo to shut my voicemail off and I used the short code to stop forwarding calls to my voicemail. So far when people call my T mobile number google voice picks up if i let it ring or if i reject a call. Now i need to see how to get into the google phone app to update that greyed out number
 

entropism

Senior Member
Jul 21, 2007
1,795
441
Linden, NJ
OnePlus 7T
Google Pixel 4a 5G
Creative, that's not what people are looking to do. If you were using a Pixel (or a few other phones that use Google's Dialer as standard) the in-dialer VVM uses T-Mobile's (or whatever carrier you're using) voicemail service, it just runs everything through the dialer.

In addition, you don't need to have T-Mobile shut off voicemail to use Google Voice, you go into your call settings and just change the conditional call forwarding numbers to your google voice number.

And it's not about not wanting to use Google Voice. It's about getting the same functionality that every other carrier has without HAVING to use Google Voice.

Going to be honest here, you're making way more out of this than you need to.
 
May 17, 2021
47
12
LineageOS
Creative, that's not what people are looking to do. If you were using a Pixel (or a few other phones that use Google's Dialer as standard) the in-dialer VVM uses T-Mobile's (or whatever carrier you're using) voicemail service, it just runs everything through the dialer.

In addition, you don't need to have T-Mobile shut off voicemail to use Google Voice, you go into your call settings and just change the conditional call forwarding numbers to your google voice number.

And it's not about not wanting to use Google Voice. It's about getting the same functionality that every other carrier has without HAVING to use Google Voice.

Going to be honest here, you're making way more out of this than you need to.
I'm out of work for another month. Just trying to keep busy lol. That's all
 
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aldoe00

Member
Oct 17, 2017
18
2
Not sure if people care, but I've finally able to use Google's native visual voicemail in the phone dialer.

I've been using the google voice trick to have conditional call forwarding to my google voice, and I check voicemail there.
I can confirm that I have visual voicemail working on my stock pixel 5 and a second pixel 5 on T-Mobile.

Here's what I did:

1) go into google voice --> hamburger menu --> settings --> device & numbers --> and delete the linked number and also everything else in there (I'm not sure this step is needed but it worked for me)
2) go to the phone dialer and send the following code: ##004# (then wait for the success message that it worked, took about 15 or so seconds to get confirmation). I rebooted. Then the visual voicemails started appearing natively in the phone dialer.
3) For my wife's phone, for some reason the visual voicemail icon on the bottom right was not there, but then suddenly appeared after rebooting and waiting a few minutes. I also wasn't getting messages, so I sent the ##004# code again, and then it started working. Again, no idea if that did anything but it started working! Good luck!

4) Profit!

Hope this helps others.
Cheers!
 
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  • 2
    So just right off the bat, I know that T-Mobile are assholes and they setup their voicemail to only work by calling in or using their ****ty proprietary app.

    That said, I get a vague sense that there probably shouldn't be a lot stopping someone that has root access and maybe a custom rom from fixing the default visual voicemail feature included in the google phone app to get it working with T-Mobile anyway by figuring out what exactly it is the default app needs to do to make T-Mobile think it's their app that's connecting?

    Wondering if anyone knows if that's something I could potentially look forward to in the future because quite frankly I hate calling in to get my voicemails and I hate their app. If I had to choose between one of those 2 options for voicemails and just straight up disabling voicemails all together for my line, I'd picking disabling voicemails.
    2
    VVM on T-Mobile hasn't worked for years unless you're specifically using their proprietary VVM app. It wasn't working for me on my last phone (Nokia 7.1) and it's not working right now either on my OP9Pro. It's pretty well documented too:

    https://www.reddit.com/r/tmobile/comments/cexhou
    It's not just me.
    2
    We're not looking for an alternative voicemail service. We're looking to use the in-dialer voicemail like every other device that has the Google dialer as the default.
    1
    Right. We're talking about getting the in-dialer voicemail, not the T-Mobile app.
    1
    Creative, that's not what people are looking to do. If you were using a Pixel (or a few other phones that use Google's Dialer as standard) the in-dialer VVM uses T-Mobile's (or whatever carrier you're using) voicemail service, it just runs everything through the dialer.

    In addition, you don't need to have T-Mobile shut off voicemail to use Google Voice, you go into your call settings and just change the conditional call forwarding numbers to your google voice number.

    And it's not about not wanting to use Google Voice. It's about getting the same functionality that every other carrier has without HAVING to use Google Voice.

    Going to be honest here, you're making way more out of this than you need to.
    I'm out of work for another month. Just trying to keep busy lol. That's all