> ## Documentation Index
> Fetch the complete documentation index at: https://docs.asisso.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Editing a Workflow

> Learn the fundamentals of building workflows with nodes, pathways, and conversation flow in the voice agent builder.

## Overview

A workflow is a graph of connected nodes representing conversation stages, with pathways defining agent movement between stages.

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## Global Node

Contains instructions applicable across the entire call:

* Company context
* Overall agent goal
* Tone and personality
* Common objection handling

## Node-Level Toggles

### Add Global Prompt

* Recommended to inject [Global Node](/voice-agent/global) instructions into most nodes

### Allow Interruption

* **Default "On"**: Bot stops and responds to user interruption
* **"Off"**: Bot continues speaking, ignoring user input

### Detect Voicemail

* Available only in Start Node
* Automatically disconnects if voicemail detected

## Variable Extraction

Supported in Agent and End Call Nodes:

* Extract structured variables
* Define name, type, and description
* Examples: customer name, budget, interest

## [Webhook Node](/voice-agent/webhook)

* Executed at call end
* Sends payload to specific endpoint
* Use for:
  * Storing call data
  * Triggering automation
  * Syncing with CRMs

## Editing Workflows

* Selectively delete nodes/pathways
* Completely reset workflow

## Pathways and Tool Calls

* Define agent node movement
* Use [tool calls](/voice-agent/tools/http-api) to transition between nodes
* **"tool"** is a reserved keyword for function calls and actions