In short
An AI receptionist combines four parts: a phone connection, speech-to-text that turns the caller’s words into text, a language model that decides what to say and do within written rules, and text-to-speech that turns the reply into a voice. Around those sit connections to your calendar and CRM, so the call produces a booking or a record a person will see.
What happens on a single call
| 1. The call arrives | Your number forwards to the AI receptionist, either for every call or only when nobody picks up, the line is busy, or the office is closed. |
|---|---|
| 2. Greeting | It answers with a greeting you have written, says who it is, and tells the caller if the call is recorded or transcribed. |
| 3. Listening | Speech-to-text turns each thing the caller says into text as they speak. |
| 4. Deciding | The language model reads the conversation so far, your instructions and your approved knowledge base, and decides the next reply or action. |
| 5. Acting | It may check the diary for free slots, look up an existing customer, or prepare a transfer to a person. |
| 6. Speaking | Text-to-speech reads the reply aloud in the voice you chose. |
| 7. Wrapping up | At the end of the call it writes a summary, the captured details and the outcome into your CRM or inbox, and raises the next task. |
What you have to give it
An AI receptionist only knows what you tell it. Before it answers a single call, someone needs to write down the common questions and their answers, the services you offer and the areas you cover, your opening hours, and what it is allowed to book and how far ahead.
It also needs a clear list of things it must never do: quote for non-standard work, give advice that needs a qualified person, or handle a complaint. For each of those, write what it should do instead, which is usually to take details and pass the caller to a named person or team.
The most useful document is a short call script for your three or four most common call types. The receptionist does not read it word for word, but it gives the model the order of questions and the details that must be captured every time.
Where it connects
The phone side usually needs no new handset. Most UK business lines and mobile networks support call forwarding, so you can divert to the AI receptionist on no answer, on busy, or at set times. Some businesses give it its own number for out-of-hours use.
The software side is where most of the value sits. Connected to a calendar, it can offer real slots. Connected to a CRM, it can recognise returning callers and leave a proper record. Without those connections it is closer to a smart voicemail: still useful, but your team will retype what it captured.
Handing over to a person
A good AI receptionist knows when to stop. Set rules for live transfer, such as an existing customer with an urgent problem, a caller who asks for a person, or a question outside its knowledge base. When nobody is free to take the transfer, it should take a message and tell the caller plainly when they will hear back.
Review a sample of transcripts every week for the first month. The fixes are usually small: a missing answer in the knowledge base, a question asked in the wrong order, or a transfer rule that fires too often or not often enough.
What it is not good for
It is the wrong tool for complaints, bereavement, safeguarding concerns, regulated advice, or any call where a caller needs a person’s judgement and empathy. It also cannot fix a process nobody has written down. If your team gives different answers to the same question, the receptionist will need you to settle on one first.
When this matters
Relevant if calls go to voicemail when the desk is empty, the line is busy, or the office is closed. Echo One is New Era AI’s AI calling platform for this job, and our AI voice agents service covers the scripting, connections and testing.
Questions
Will callers know they are speaking to AI?
They should. Saying so in the greeting is good practice, sets expectations and avoids callers feeling misled. Most callers care more about being answered and helped quickly.
Can it answer only out of hours?
Yes. Most set-ups use call forwarding on a schedule, or on no answer and busy, so your team still takes calls when they are free.
Do we need a new phone system?
Usually not. Forwarding from your existing line or mobile is enough to start. A new number is only needed if you want a separate line for it.
What happens if it does not know the answer?
It should say so, take the caller’s details and pass the question to a person. You set that behaviour in its instructions, and it is worth testing before go-live.