Thank you - I had opened FB17173936 previously and I have now updated it with more information.

Today as part of WWDC, I had a call with a member of the contacts team (I have his name in the ticket). He has confirmed to me the following: Phonetic was designed initially to be used mainly for Japanese language and yes it does and should affect contact sorting. In iOS pronunciation field was introduced to be used in combination with Siri. Siri should not be looking at the phonetic field at all but only look at the pronunciation. Clearly this is not the case. I have uploaded a video in the ticket showing that Siri respects the phonetic field not the pronunciation. Apple Engineer on the call confirmed that if this is the case that it is actually a bug. The thing is that most probably it shouldn't be assigned to the Contacts team but to Siri team. @DTS Engineer Can you please look into it and make sure the correct team have the ticket assigned?

@DTS Engineer any updates on this?