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Before you configure your first AI assistant, it helps to understand the three core building blocks the platform is built around.

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System prompt

The system prompt is the “brain” of your AI assistant. You write a set of instructions that guide the assistant’s behavior, tone, and knowledge. A good system prompt tells the AI:
  • Who it represents (your company and role)
  • What it’s trying to achieve on each call
  • How to handle common situations and edge cases
  • Any business-specific information it needs to reference
Example:
Start with a template. Go to your assistant’s system prompt field and click Templates to choose a pre-built starting point for your use case.

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Initial message

The initial message is the very first thing your AI assistant says when a call connects. Keep it short and clear. Example:
For outbound calls, the initial message is especially important — it determines whether the person on the other end stays on the line.

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Voices

DialogBot integrates with ElevenLabs and Cartesia for natural-sounding text-to-speech. You have three options:
  • Choose a built-in voice from the library (multiple languages, accents, and genders available).
  • Clone your own voice by uploading audio samples — useful for brand consistency or a personal touch.
  • Request a voice from the ElevenLabs public library through support.
Each voice can be tuned with parameters like speech speed, stability, and emotional expressiveness.

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Putting it all together

An AI assistant is built by combining:
  1. A system prompt — what the AI knows and how it behaves.
  2. An initial message — the first words it says.
  3. A voice — how it sounds.
Optionally, you add tools (like call transfer, call ending, or appointment scheduling) to give the AI specific capabilities. Once the assistant is ready, you assign it to a phone number for inbound calls or to a campaign for outbound calls.

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Next steps

Understanding billing

Learn how call minutes and phone number rentals are charged.

AI assistants overview

Start building and configuring your first assistant.