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

# Welcome Message And System Prompt Video Tutorial

> Watch the welcome message and system prompt video tutorial and configure how a DialNexa agent opens and conducts a conversation.

The **welcome message and system prompt video tutorial** shows how the first spoken message and the agent's core instructions work together.

## Before You Begin

Prepare a short opening that identifies the caller context and a system prompt that defines the agent's task, boundaries, and completion criteria.

## Watch The Welcome Message And System Prompt Video Tutorial

<div className="aspect-video w-full overflow-hidden rounded-xl">
  <iframe className="block h-full w-full" style={{ transform: "scale(1.035)", border: 0 }} src="https://www.youtube.com/embed/sUeV8XcQzrU?list=PLD0EumG1sQzw&index=10" title="DialNexa Voice AI: Welcome Message and System Prompt" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />
</div>

This video runs for 4 minutes and 58 seconds.

## Verify The Opening

Run a test call and confirm that the welcome message sounds natural, provides enough context, and leads into behavior that follows the system prompt.

## Related Pages

* [Prompts and welcome messages](/docs/agents/prompts-and-welcome-messages)
* [Testing agents](/docs/agents/testing-agents)
* [LLMs and conversation behavior](/docs/voice-ai/llms-and-conversation-behavior)