I originally came to this string looking for users who might have found a SOLUTION to my issues. Instead I find people who have the issue - and no fix (Understandable) and people who do not have 2 phones, so are clueless what has worked in the past.
Yes, I have read in the past about this "cool" ability to share call logs. But the facts are - I have had 2 phones that have shared an apple ID since 2010. I have no idea what iOS that would have been. 2 phones, phone numbers have not changed - the apple ID has been the same for 13 years.
Update to iOS17 and the call log issues starts. There are user settings Apple stepped on. My phones have NEVER been connected to iCloud. Yet iOS17 turned that lovely (not) app on - on both phones. My phones have always had Air Drop & Handoff turned off. But iOS17 turned both on - I assume so I could do that head to head transfer. There are more.
My point is - apple does step on settings - when it suits them. The above were easy enough to go in and change. But not before ALL my contacts (300+) from my personal phone - showed up on my work phone (and then updated my work Exchange account!). Thank you iCloud. All because apple thought turning on iCloud was a good idea.
Turned it off, but then had to remove 300+ contacts from exchange!
There is no solution that works - except to log out of your ID on the work phone. Or get a new ID. I opted to try both. The issues I had - unique to me I am sure - with no log in were too many. So I set up an new ID. I am allowed to use my work email - they don't have that restriction.
So for all who say "this is what apple wants". Well, now my work phone - with its own ID - I do not have a wallet. Download the app, never shows in settings. I can't share my location. Yes, I have all the settings correct - but when it receives a request to share - hitting the share button does NOTHING and never goes away. It was able to share before the new ID! All the settings (that I have) match my personal phone. But I can't share my location.
I now have 2 phones - both 12s - both fully up to date - yet one has about 5 settings that don't exist on the work phone. THAT is something wrong with iOS 17.
One my interpret - that if apple thought call syncing was a feature since 2018 - there has been a bug for 5 years! Because it never happened in those 5 years. If a bug can persist for 5 years and no knows it - others can as well.
And by the by - it isn't just call logs that share. iMessages do as well. That was an easy fix, I just turned it off on my work phone. But that shares too now. Never before.
Sorry for the long post - just needed to point out that iOS 17 isn't perfect. Bugs exists.