> For the complete documentation index, see [llms.txt](https://docs.bookli.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bookli.ai/task/1.trigger/cose-un-trigger.md).

# Cos'è un Trigger

<figure><img src="https://media.supademo.com/cmfzfqoim0099xx0iino3u3ku/screenshots/t4WzOBwUr9WSGhch0I5H9.jpg" alt=""><figcaption></figcaption></figure>

#### 1. Definizione di Trigger

{% hint style="info" %}
Un **trigger** è l’evento che fa partire una **task** o una **conversazione**.\
In altre parole: è il punto di innesco che dà il via all’interazione con l’utente.
{% endhint %}

***

#### 2. Tipologie di Trigger

I principali trigger disponibili sono:

* **Webhook**
  * Il più comune.
  * Permette di collegare la piattaforma a qualsiasi fonte esterna di lead (siti web, form, CRM, ecc.).
* **WhatsApp in arrivo**
  * La task si attiva quando un utente invia un messaggio su WhatsApp.
* **Chiamata in arrivo su Twilio**
  * La conversazione parte quando arriva una telefonata tramite il sistema Tullio.
* **Chiamata in arrivo su SIP Trunk**
  * Trigger attivato da una chiamata che arriva attraverso un collegamento SIP.


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