AI Receptionist Greeting Script: What to Say in the First 5 Seconds (With Real Call Data)

Short answer: A good AI receptionist greeting does three things in about five seconds. It tells callers who they reached, says plainly that it's an AI assistant, and asks one easy question they can answer right away. Keep it to one or two short sentences, have the agent pause a beat before it speaks, and match the greeting to what the caller expected when they dialed. That last part matters most. In the call logs we reviewed from October 12 to 28, 2026, callers who dialed an owner's cell and reached an assistant hung up without a word on 27 of 39 calls. On main business lines it was 22 of 61.

Below are the numbers, the scripts we'd use on each type of line, and the Retell and HighLevel settings that decide whether your greeting is even heard.

What happens in the first few seconds of an AI-answered call?

We review every call on the Retell voice lines we manage each morning. From October 12 to 28, 2026, those lines logged 152 calls. Our review flagged 52 as spam. Of the other 100, 49 ended with the caller hanging up before saying a single word. Half of those hang-ups came within 7 seconds, and 29 came in under 10 seconds.

That 10-second mark matters. Retell's default "reminder" (the agent's nudge when a caller goes quiet) fires after 10 seconds of silence and only once. By then, most silent callers had already gone.

The split by line type is the useful part:

Line type	Calls (not spam)	Hung up without speaking	What the greeting said
Owner's cell overflow (two lines)	39	27	"This is [owner]'s AI assistant" or "[company]'s digital assistant," then a question about who they're calling for
Main business lines (five lines)	61	22	"Thank you for calling [company]," sometimes with a persona name, then "How may I help you today?"
Accounting office (one of the five)	18	3	"Thank you for calling [company]. How may I assist you today?" (12 words)

Not every silent hang-up is a lost lead. Some are likely wrong numbers or robocalls our spam filter missed, and some numbers called back within the same two weeks. But the pattern is consistent. When the caller expected a specific person, the assistant was a surprise, and surprised callers hang up. On a main line, the caller expected a business, and more of them stayed.

What should an AI receptionist greeting say?

Five rules we write every greeting against:

1. Match the caller's expectation first. If they dialed a person, say right away that the person can't pick up and that you can get a message to them. If they dialed a business, name the business.
2. Disclose that it's AI in plain words. "Virtual assistant" or "AI assistant" works. Maine bars AI that could pass for human in a sale unless the caller is clearly told, and Utah requires an honest answer when someone asks. Our AI receptionist disclosure guide covers the rest.
3. Ask one question with an obvious answer. "Are you calling about a new project or an existing one?" is easier than "How may I help you today?" An open question makes a nervous caller compose a speech.
4. Keep it under about 15 words before the first question. Long openers get talked over, and the caller misses the part that tells them what to do.
5. Offer the human path early. "If you'd rather leave a message for [Name], just say so" keeps people who don't want to talk to AI on the line. Our transfer-to-human guide covers the rules for that handoff.

If you record calls, add the notice right after the disclosure. Florida requires every party's consent to record (section 934.03), so we put "this call may be recorded" in the greeting, not in a menu. Our AI call recording laws post has the state-by-state detail.

AI receptionist greeting scripts by line type

Swap in your own business and owner names (the brackets are placeholders). Each one discloses, sets expectations, and asks one easy question.

Line	Greeting we'd start with
Owner's cell overflow	"Hi, you've reached [Name]'s phone. I'm [Name]'s AI assistant, and [Name] can't pick up right now. Is this about a project, or is it personal?"
Main business line	"Thanks for calling [Company]. I'm the virtual assistant. Is this about a new job or one we're already working on?"
After hours	"Thanks for calling [Company]. The office is closed, and I'm the AI assistant. Is this an emergency, or can I set up a callback for the morning?"
Appointment-heavy office	"Thanks for calling [Practice]. I'm the virtual assistant and I can book or move appointments. Which are you calling about?"
Bilingual	"Thanks for calling [Company], I'm the AI assistant. Para español, solo hable en español. How can I help?"

For the bilingual version, set the language before you write the line. Our bilingual AI receptionist guide explains which Spanish to choose. For after-hours lines, the greeting is only the start of the triage, which we walk through in after-hours AI call answering.

Which settings decide whether callers hear the greeting?

The words matter less if the caller never hears them. These are the settings we check on every Retell build:

• Who speaks first. Retell's Welcome Message setting lets the agent speak first with a fixed (custom) or generated (dynamic) message. Use a fixed message for the greeting so it's the same on every call and you can test it.
• Pause Before Speaking. In the API this is begin_message_delay_ms, from 0 to 5,000 milliseconds. If it's unset, the agent speaks immediately. Retell's docs say to raise it if the agent starts talking before the caller has finished picking up. Otherwise the caller hears the end of the greeting, not the start.
• Interruption sensitivity. It runs from 0 to 1. The API default is 1, and new dashboard agents start at 0.9. Too high, and background noise cuts off your greeting. Too low, and a caller can't jump in with "I just need to reschedule."
• Silence reminders. Retell's reminder_trigger_ms defaults to 10,000 ms, and reminder_max_count defaults to 1. Given how fast silent callers left in our logs, a short, friendly prompt sooner ("Are you still there? I can take a message for [Name]") is worth testing.
• End call on silence. The default is 10 minutes (600,000 ms). Lower it so dead air doesn't run up minutes.

HighLevel puts the same controls under Call Settings (idle reminders and silence handling) and Agent Behavior (interruption sensitivity) in its Voice AI builder. You have to turn on "Show advanced settings" to see them. We set these up on every Retell voice agent setup.

What should happen after a silent hang-up?

A caller who hangs up during the greeting still left you their number. Treat it as a missed call, not a dead one:

• Text back only with a lawful basis. An automated text after a missed call raises TCPA and opt-out questions, which we cover in missed-call text-back rules.
• Don't create a "hot lead" task from a 4-second call. Gate CRM tasks on an extracted callback reason, not on the call ending. Our post-call task workflow shows how.
• Check repeats. In our logs, several silent hang-ups came from the same numbers within two weeks. A caller who tries three times wants a person. Flag repeat callers for a human callback.
• Separate spam first. Robocalls that talk over your greeting inflate the hang-up count. Our AI receptionist spam calls post covers filtering.

Greeting checklist before you go live

• The greeting names the business (or the person whose phone it is) in the first sentence
• It says "AI assistant" or "virtual assistant" in plain words
• The recording notice comes right after the disclosure, if you record
• About 15 words or fewer before the first question
• The first question has an obvious answer
• There's a human or message path in the first two turns
• Pause Before Speaking is tested on your actual carrier and numbers
• Interruption sensitivity is tested with background noise
• The silence reminder fires before most silent callers give up
• Silent hang-ups get a review, a callback rule, or a compliant text-back
• You've placed five test calls from a cell phone and listened to the first five seconds of each

Want a greeting that keeps callers on the line?

We'll review your recent calls, rewrite the greeting for each line, and tune the settings that decide whether callers hear it. Book your AI systems assessment. You can also see how we set up AI receptionists for small businesses.