IPhone11ProMax/11 Pro - conversation problem

Hello cosminmorar7 and welcome to Apple Support Communities.

I see you're having issues with the way your voice sounds on calls using multiple devices.

The fact that this is happening on multiple devices pretty much rules out hardware. The fact that toggling Airplane Mode resolves the issue does point to a probably connectivity issue with the cellular network. Do Vodafone and Orange share a network akin to what Sprint and T-Mobile do in the U.S.?

As far as software troubleshooting, you may want to approach this from the receiving end of one of the other devices.

If you can't hear a person on a call or voicemail or if the sound isn't clear on your iPhone - Apple Support

Cheers.

I have the same problem. Daily too. I have T-Mobile in The Netherlands. Already got a new SIM, did a factory reset, a remote scan, device scan at an ASP. No problem with same SIM on previous phones. iPhone 11 Pro.

The same problem is for iPhone 11, Pro and Pro Max.

There are 2 providers in my country with different networks, and the phones are having troubles on both.

A temporary solution is switching the connection the phone is getting down to 2G, the robotic voice is only happening when the phone is talking on the 3G network

I have the same problem with my Iphone 11 pro , coverage is very good (4g) but when i talk on the phone receivers hear my voice like robot or very low voice.

Is this a hardware or software problem ? and did anyone manage to find solution for this ..(restarting the phone every time is not good approach).

Same problem here in Sofia, Bulgaria on Vivacom Network. I have 11 pro max 256 GB. My voice often sounds like I am a robot talking from inside of a barrel! At times I cannot use my phone for its main purpose - being a phone!

Extremely annoying when you have spent 1500 Euro on a phone.

Yup, it's not so ok to restart the phone several times per day, i'm using airplane mode on/off. As far as i understood Vivacom will handle this issue in February but it's rumor from Bulgarian iOS forums.

I have the same issues. We have to restart the phone everytime, we seriously need a solution for this !

Ukraine has the same problem, so I think that it’s software problem. Still waiting the news from Apple. Two months and I’m very tired of this problem.

We're all tired to restart our phones several times during the day))) the only hope is to wait for next Apple's upgrades.

I had iphone 6,7,8,XS and Iphone 11. I'm disappointed and i think once Huawei mate pro come on bulgarian's market i'll change the brand.

Same issue with two 11 pro’s on Telenor/Bulgaria. This is horrible, Apple!