> For the full page index, fetch https://echonova.ai/llms.txt

# Help

FAQ, troubleshooting and the glossary.

## FAQ

- [FAQ: account](https://echonova.ai/docs/help/faq-account.md): The questions people ask about signing in, passwords, two-factor authentication, their profile, workspaces, notifications and deleting things.
- [FAQ: billing](https://echonova.ai/docs/help/faq-billing.md): The questions people ask about credits, what each service costs, monthly renewal on yearly billing, top-ups and auto top up, running out, plans, cancelling, payment methods, invoices, usage and who can see billing.
- [FAQ: Text to Speech](https://echonova.ai/docs/help/faq-text-to-speech.md): The questions readers ask about generating speech in the portal, from voices and dialects to what a generation costs and why one failed.
- [FAQ: Speech to Text](https://echonova.ai/docs/help/faq-speech-to-text.md): The questions readers ask about transcribing audio and cleaning recordings in the portal, from accepted files and limits to cost, results and export.
- [FAQ: API](https://echonova.ai/docs/help/faq-api.md): The questions developers ask before they open the Developer API pages, from keys and base URLs to jobs, webhooks, rate limits, credits and errors.
- [FAQ: agents](https://echonova.ai/docs/help/faq-agents.md): The questions people ask about agents before they know which page to open, from what an agent is and what it costs to who can edit it and how long its conversations are kept.
- [FAQ: channels](https://echonova.ai/docs/help/faq-channels.md): The questions people ask about channels before they know which page to open, from which channels exist and what WhatsApp needs to how a handoff works and how to move or stop a channel.

## Support

- [Troubleshooting](https://echonova.ai/docs/help/troubleshooting.md): The messages and symptoms people hit most in the portal and on the API, one table per area, each with its likely cause, the fix, and the page that explains it in full.
- [Glossary](https://echonova.ai/docs/help/glossary.md): Every word the portal and these docs use with a meaning of its own, in alphabetical order, one or two sentences each, with the page that explains it in full.
- [Contact and support](https://echonova.ai/docs/help/contact-and-support.md): Where to look first when something goes wrong, the help the portal offers on its own pages, how to reach EchoNova by email or ask for a demo, and what to put in a support message so the first reply is the answer.