# Block a caller from your receptionist

Source: https://help.mucka.ai/ai/block-a-caller
Category: Mucka AI
Last updated: 2026-11-08

> Stop a nuisance caller reaching your AI receptionist. Block their number from the call itself or under Settings, and they hear a short message instead, using none of your minutes. Explains why blocking them on your own phone sends them to Mucka.

If somebody keeps ringing who you do not want to hear from, you can block their number in Mucka. Your receptionist will not answer them. They hear "Sorry, nobody can take your call" and the call ends, before the receptionist starts, so it uses none of your minutes.

## Why blocking them on your phone is not enough

When your phone blocks a number, it turns the call away, and your network treats that as your line being busy. If your phone forwards calls to Mucka when you are busy, that blocked call is forwarded straight to your receptionist. So the block on your phone sends them to Mucka instead of stopping them. Blocking the number in Mucka as well is what stops them.

## Block a number from a call

Open [**Receptionist**](/voice-receptionist), find their call under **Calls** and open it. Tap **Block number** (on a phone, **Block this number** at the bottom of the call). The button changes to **Unblock**, so a slip is one tap to undo.

## Block a number by typing it in

Open [**Receptionist**](/voice-receptionist), then **Settings**, then **Blocked numbers** under **Answering**. Type the number the way it shows on your phone, like 07700 900123, and tap **Block**. Every number you have blocked is listed there with the day you blocked it, and **Unblock** next to each one.

## What you will see

Calls from a blocked number still appear in your **Calls** list, marked **Blocked**, so you can see they tried. You do not get a missed-call card for them.

## What it cannot block

- **A withheld number.** There is no number to match, so a caller who hides theirs is answered as normal.
- **Your own number.** Some landlines pass your own number along on every forwarded call, so blocking it could stop every call reaching your receptionist. Mucka will not let you add it.
- **Texts.** Blocking stops calls to your receptionist. Texts are not forwarded by your phone, so a text from that number still reaches your own phone, where your phone's own block deals with it.