iOS 12/iOS 11 Carplay poor call quality Crackle issue with Apple

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Many iPhone X/8 and iPhone 7 users are faicing issue of poor call quality with the Carplay. This does not seems to be an issue with iPhone handset as the sound quality is great through Bluetooth using the Audi/BMW/other car interface. But when I connected the iphone 8 to carplay (using an official lightning cable) the sound quality is a really poor.


Surprisingly with CarPlay audio and link works perfectly for streaming music, using Siri etc, however while making or receiving calls the audio quality is choppy/breaks up. Even the iPhone X with upgraded to iOS 12 Beta 3 and still getting the popping sound. This is Really annoying.
·        Fix poor call quality issue with iPhone and carplay

Fix 1: Basic trouble shooting steps to fix carplay voice quality

-Make sure that Siri is turned on.
-If possible, connect your iPhone to a different USB port in your car or reinsert the USB properly.
-Update to the latest version of iOS.
-Check your car’s manual for help. You might need to install firmware updates for your stereo.

Fix 2: Complete restore from iTunes

It is possible that while upgrade process iOS might have some issue with Carplay service registration. Please do a full iOS 12/11 restore and check if this fixes the issue as it has helped to fix for many other users.  

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