FWIW, a work colleague tried to find it on his iPhone earlier today, and we couldn't find the feature. We even enlisted Gemini that said what to do, but those options did not exist. Could be limited in the EU at least for whatever reason. His phone was on iOS 26.
I decided to search now and here is how it works on iOS
In Phone on iPhone, avoid unwanted calls by blocking specific numbers, screening calls, and sending unknown and spam callers directly to voicemail.
support.apple.com
Gemini also came up with this explanation of the differences:
To answer your specific question first: **No, the iPhone does not actively interact with or interrogate the caller.**
Apple’s approach to call screening, called **Live Voicemail**, functions essentially like a modern version of a 1990s answering machine. When a potential spammer or unknown number calls, the phone simply routes them to your standard voicemail greeting. As the caller speaks, the iPhone generates a live text transcription on your screen. You can read the transcript as they talk and decide whether to hit "Accept" to jump into the conversation mid-sentence. The system is entirely passive; Apple's software never speaks to the caller on your behalf to find out what they want.
### How Pixel and Samsung Compare (Active AI Screening)
When evaluating the flagship smartphone landscape, especially if you are keeping an eye on where Google's Tensor processors might push features on upcoming devices like the Pixel 10 or 11, the contrast in how Android handles spam is stark. Both Google and Samsung use active AI to step in as a conversational buffer between you and the caller.
* **Google Pixel (Call Screen):** This remains the gold standard for active screening. When a call comes in, Google Assistant can answer the line, introduce itself as an automated system, and actively ask the caller to state their name and business. You watch the transcript live. The key advantage here is sustained interaction: you can tap suggested on-screen prompts (e.g., "Is it urgent?", "I'll call you back," or "Remove this number"), and the Assistant will verbally speak those follow-up responses to the caller without you ever saying a word.
* **Samsung Galaxy (AI Call Screening & Bixby Text Call):** Samsung has rapidly closed the gap. While they previously relied primarily on manual text-to-speech, the latest One UI software on their newest flagships (like the Galaxy S26 series, and rolling back to the S25) now features fully automated Call Screening. Much like the Pixel, the Galaxy AI will pick up suspected spam or unknown numbers, greet the caller, ask for their purpose, and give you a real-time transcript. Samsung also offers "Text Call," which lets you type out a custom, on-the-fly message mid-call that the AI will synthesize and read aloud to the caller.
### Summary
* **iPhone (Live Voicemail):** Passive. The caller leaves a standard voicemail, and you read the transcript in real-time to decide if you want to intercept it.
* **Pixel & Samsung (Call Screen):** Active. The AI acts as a personal secretary, picking up the phone, verbally asking the caller questions, and allowing you to respond via text-to-speech before you ever accept the call.
Now for the debate as to which is better...