[iOS] Poor call quality on iOS with a lot of jittery

[kirilllapshev]

Issue Summary

Hey when I make a call from/to iOS the quality of the call is very poor. I've tested it using Android and Web and it worked well.

I've also used the twilio_voice_quickstart just to make sure that the problems wasn't with the iOS package it self, and it's working fine.

Do you know how can I solve this? Am I the only one experiencing it?

Steps to Reproduce

1. Make a call from/to an iOS device

Any other relevant information. For example, why do you consider this a bug and what did you expect to happen instead?

I'm using IPhone 13 Pro Max with iOS 17.4.1