iPhone 12 can’t speak on phone calls

Same problem with my iPhone 12 Pro. When I receive a call and attempt to hear, I hear nothing but when I initiate a call and call the same person, it works fine. Technically, it's the incoming call that I am not able to hear. After I reboot my device, It works fine for few days and then repeats again. This is very disappointing!

Similar issue here - no audio on some calls, regardless of which audio output I use, including external bluetooth devices. But then works fine when using other applications. Reseting the phone does resolve the issue, but shouldnt need to reset my phone to take a call.

I was first thinking it may be related to the fact I’m using Dual Sim, but not sure if anyone else is m

I’m having the same problems of other callers not hearing me during a call. And it does seem to be getting worse as I use my air pods more. I tried resetting to factory default and that didn’t work either. Nothing seems to work. Apple said that maybe it was my SIM card or the line. I’m going to try changing to a different SIM card but first I’m going to stay off my air pods. Bluetooth is off!

I have iPhone 12 mini. Its now August and all seems now OK (although still have glitches making calls on car Tom Tom - bluetooth). I had had this 'no sound on random calls' problem earlier in the year. I am in Melbourne Australia. I took the phone to my carrier. Reset network settings, changeover SIM etc . Problem still came back a week or two later. At the Apple store a technician was able to confirm the fault when I rang him there! He said they received 2 or 3 a day with the sound dropouts. So they know about this issue. Since May /June there have been no problems and I presumed that software upgrades had dealt with it. Just wish apple had been more honest revealing the fault and the fix if it has happened. Will keep my eye on this thread.

We have 3 iPhone 12’s in our household as well. Same problem. T-Mobile blames Apple, Apple blames T-Mobile. All we know and keep saying is we have to use my son’s iPhone 6 to make calls so people can hear us. My opinion is the software has an issue. A reset makes it work ok for a bit, but we also have to reset our vm every time we restart as it resets too. Bad experience so far from the iPhone 12.

I have the same problem. I got my iPhone 12 in April 2021, and at the same time switched from AT&T to Xfinity. I can always hear the other person but they can’t always hear me. We can be talking and they hear me okay then they tell me I’m breaking up, and then they don’t hear me at all. This has happened with phone calls and FaceTime. Xfinity couldn’t figure out the problem, so got Verizon involved saying it was probably a network problem, but Verizon says everything is okay. Xfinity said go to Apple store which I did. Apple tested and said it’s okay, it’s a network problem. They also said they never heard of this problem. After reading this forum now I know it’s not true, it’s an Apple iPhone 12 defect. I was considering switching to another network before reading the other complaints, but I guess the real solution is switching to a non-Apple phone. I was thinking maybe trade up to iPhone 13 even if it costs a lot to change after 6 months, but now I don’t feel confident Apple has this problem resolved and they are not standing by their product. This was my 3rd iPhone. I will be warning all my friends and family about the risk of the new phones.

This is happening to my girlfriends brand new iPhone 12, same model as yours. Factory reset and messing with settings failed to correct the issue.

Did you end up returning yours to factory?

I have the same issues it's probably because of the bluetooth connection. As I've been using my airpods for some time now.

I did every step to resolve and showed to service center and there is hardware issue, so I submitted the iPhone 12, it will take 2,3 week time due to lockdown in Bangalore

I don’t think my phone has a defective speaker as the issue would be more consistent and would appear in other ways, such as being unable to record audio on video. The symptoms are consistent with a software problem.

I have the same problem. When I receive calls I can't hear the caller and they can't hear me. I have to call them back, than it works.

But I have it also during conversations, that all of a sudden the connection is dropped.

Really really annoying. Have done factory settings and start again, didn't fix the problem.

i have the same issue on the 12 Pro Max,

but mine’s a bit different - the recipient of my calls cant hear me but hear machine gun sounds which is strange!

im on esim, but I’ve changed and tried another carrier’s physical sim and both reacts the same. So i think it rules our carrier issues. No issues on speakerphone , as they can hear me loud and clear (machine gun noises disappear)

Others apps such as WhatsApp also works perfectly fine.

Well I have sort of a mix of everything said above... and I am sick of factory resetting iPhones when they are newly released each year. I have tons of apps, music pictures etc and dealing with all that takes days.

I think Apple should stick with making solid software instead of working on very stupid emoji etc. updates.

before anyone tells me otherwise, I am an Apple user since 1997, have all my computers etc. all apple. And I have been using iphone since 2007 after the introduction of the first one.

[Edited by Moderator]

iOs 14.4 will not resolve this problem. it’s an eye opener for those who thought it would. I just checked what’s new in 14.4. Seems like Apple is neglecting all the crucial fixes and working on creating non essential updates. Gone are the days when I bought my first iPhone in 2007. Seamlessly beautiful. Nice job Jobs!!

So It’s clear then. I don’t think it has anything to do with the hardware as you said it happened in the new iPhone. Thank you for the update as I was about to go for the replacement device. Now, I will not. I hope someone in the software development team is listening. 😢