When an iPhone is called, siri’s name is given to him.

When your iPhone calls, you’ll have trouble knowing the person’s name before you answer. Depending on who you are, your attitude will change. However, today’s wireless earphones are equipped with a call function, you can answer without looking at the screen of the iPhone. It’s useful, but it might be a kind of bet to respond without knowing your opponent’s name.

Your iPhone has the ability to know the person’s name without looking at the screen before answering the incoming call. Siri, the voice assistant on your iPhone, queries the other person’s phone number in the Contacts app and reads the owner’s name.

The setting is simple. Open the screen after Settings → Phone → Let me know by voice, and then select Headphones and Cars or Headphones Only. If you choose “Always let me know”, be aware that when you don’t have earphones, you’ll hear the name of the phone’s person from the iPhone’s built-in speakers.

Please note that only people who have a mobile phone number or a fixed phone number in the Contacts app will read their names. If you come from an unregistered number, you will be read “Unknown Caller” uniformly. Non-notification incoming calls are similarly treated as “unknown callers”, so even incoming calls from someone you know cannot distinguish them from non-notifications.

Sns calling service is also the same, “LINE Audio” and the like can be read the service name. In the case of SNS, since the voice call is basically a person you know, “unknown caller” i think you can respond with peace of mind.
Easy explanation of operating procedures

1 Open the screen after Settings → Phone

2 Tap Let me know

3 Select Headphones and Cars or Headphones Only