iPhone 6S, Visual Voice Mail not working

Cooper321 wrote:

Hello, Visual Voice mail not working when iPhone 6S is connected to wifi and LTE. Works if you turn wifi off. Very inconvenient. Have tried 4 new iPhones this month and have the same problem. Bought the first 2 from the Apple Store. Apple Genius rep could not fix. Apple Care + could not fix. T Mobile said their version of the phone was different. Returned phones to Apple, got two (wife and I) new ones from T Mobile. Same problem. T Mobile cannot fix. T Mobile says it is an Apple issue. My Android phone worked fine. I am caught in the middle.

T Mobile is passing the buck here, as visual voicemail is a carrier feature and not an Apple feature.

no my iPhone never had that feature and I suspect if you bought a factory sim unlocked phone it also would not unless you put in a sim of a carrier that had the feature

I have this exact same problem. When connected to Wifi Calling (status bar says "T-Mobile Wifi") and I receive a new voice mail, I do not get a voice mail notification. No problems on LTE. iPhone 6S running iOS 9.3.

T-Mobile. I had the exact same phone on AT&T with iOS 9.2 and had no issues with VVM using AT&T WiFi calling. So this is either:

1) An issue with T-Mobile regardless of iOS version (something with how they implement VVM/Wifi Calling)

2) An issue with T-Mobile on iOS 9.3 (can anyone reproduce this with iOS 9.2.1 on T-Mobile?)

3) An issue with iOS 9.3 regardless of carrier. (Anyone on ATT/VZ/Other seeing this issue?)

My hunch says its #1, but lets collect some data. Onec we get some replies I'm going to forward this thread to T-Mobile and get them to look into it. In fact, when I tweeted a separate issue regarding reception at RDU Airport I CC'ed John Legere and got a call from the executive office in 48 hours. So with the appropriate data I think we can get this escalated appropriately at TMo.

I'm on ATT and have the exact same problem with the iPhone 6s - my old iPhone 5 worked fine. The response I received from ATT was to turn off wifi. Not helpful.

I am still looking for a solution.

In reading this entire thread, it seems the common denominator here is wi-fi calling, both on W-Mobile, your first carrier, and then the second poster stating the issue with AT&T. Visual Voicemail, as well as any other version of voicemail requires the cellular data system. If you are avoiding the cellular data system with wi-fi calling, or have cellular data turned off, you will not get voicemail. My guess at this point, is the carriers need to have a method for you to receive your voicemail if you are only using their wi-fi calling system. I suggest you contact the carriers again and explain what seems to be happening here. My guess is they are going to have to work through this if you are not getting their cellular signal and just using their wi-fi calling system.

I'm not sure how I'm incorrect, as your post said no where that you had cellular data on. I'm not saying to turn wi-fi off. I am saying that with an iPhone 6s on AT&T, which is where one of the posters came from, Visual Voicemail works just fine. I just reinforced that cellular data is required for VVM, but that it seems there is an issue with the use of wi-fi calling. If you do have a cellular signal and are still using wi-fi calling, then it is a different story. Most people use wi-fi calling due to a lack of cellular signal.

I don't doubt you have logged several hours in support, but as indicated by others earlier, the function of VVM is on the carrier, not Apple. I can say that I have seen a number of threads in the past describing issues with T-Mobile and their wi-fi calling, and I do know that AT&T delayed the release of their wi-fi calling due to problems in some areas. I don't know that VVM was any part of it.

From the end of your final post, it seems you are no longer interested in troubleshooting the issue, since there seems to be a lot of finger pointing. You are free to purchase any device you wish, and if a device using the Android operating system fits your needs, then good luck.

Cooper321 wrote:

You are incorrect and have not read my post correctly. I am not just using wifi. I have cellular data (LTE) turned on and have wifi turned on also. I have a good signal on each. Visual voicemail only works when when wifi is off.off I am not avoiding the cellular capability. My communications with TMobile and Apple says it is suppose to work and each blame each other. To turn off wifi just so the visual voicemail will work is not a solution. If I do a download of an app or update the operating system I want wifi turned on for obvious reasons. Nothing and nobody, including Apple and Tmobile says I can only have cellular on to get visual voicemail. I have logged over 30 hours talking to Apple and Tmobile and neither can solve the problem or will admit it is there problem, but both say it is suppose to work. They blame each other. Hence, I will be going back to Android. I have had the 5, 5s, and then went to Android and now back to the 6s. Had no problems until I got the 6s.

Disable the feature for WiFi Calling under Settings>Phone>WiFi Calling. You can keep WiFi on. After this, if you still experience this issue while connected to WiFi, I agree. That is weird. Until then, it is a Carrier Feature that is available through iOS software and as you explained that you do not have issues with your cell service signal, why create a mountain out of a molehill? This feature was meant to assist those in areas with little to no Cell Service.

I haven't seen it mentioned yet, so it's worth mentioning that the signal strength of your WiFi does not signify its quality. What sort of broadband speed are you paying for? Could this be something to consider? You've looked everywhere else. That is, if you still wish to look into this at all. If you're looking at 3 Mbps Download speeds to share with your entire household, I can't see that not playing some factor in the quality of use of WiFi Calling.