What means CallerID dont work ? Its means internal app for cals or what specific? I see on the reddit but I dont understand so much. Thanks fow letting me know
If phone number is in Contacts - it is shown fine.
It is feature for unknown numbers.
CallerID is an option when some unknown number (not in Contactd) call - phone search via Internet and shows "who is" before even answer, so you know if number is reported as spam, advising, scam or ir is some company phone. Even I register my phone - so, wjen call someone who who do not have my number but have CallerID function - will see my name.
Sime CSCs have it internally, but if not - can be used via app called :Hiya
(look at their website for detailed explanation)