> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://poly-ai.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://poly-ai.ferndocs.com/_mcp/server.

# Twilio

> Connect your Twilio account to use existing phone numbers and SMS with PolyAI

Use Twilio with PolyAI to use your existing phone numbers, SMS infrastructure, and contact center setup.

## Why use Twilio with PolyAI

If your organization already uses Twilio for telephony, you can connect your existing numbers rather than purchasing new ones. This lets you:

* **Keep your current numbers** – No need to port or change numbers your customers already know.
* **Use Twilio SMS** – Send SMS messages during or after calls for confirmations, links, or follow-ups.
* **Integrate with Twilio Flex** – Route calls between your PolyAI agent and live agents in your Flex contact center.

## Integration guides

#### [Phone number integration](/agent-studio/voice/numbers/twilio/phone-number-integration)

Connect a Twilio-hosted phone number to your agent. Start here if you just need voice.

#### [SMS integration](/agent-studio/voice/message-templates)

Set up SMS messaging so your agent can send texts during or after calls.

#### [Twilio Flex integration](/integrations/telephony/twilio)

Route calls between PolyAI and your Flex contact center for live agent handoff.

## Related pages

#### [Call handoffs](/agent-studio/voice/handoffs)

Configure handoff destinations for live agent transfers

#### [Telephony overview](/agent-studio/voice/numbers/overview)

General telephony setup and phone number management

#### [Outbound calling](/agent-studio/voice/numbers/outbound-calling)

Configure proactive calls through Twilio