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

# Voice integrations

> Connect PolyAI to voice platforms for call routing and SIP-based handoffs.

PolyAI integrates with voice platforms for call routing, SIP data exchange, and live-agent handoffs. Most telephony integrations can be connected from **Integrations** in Agent Studio.

## Available integrations

| Platform                                                                | Connection | Key features                                              |
| ----------------------------------------------------------------------- | ---------- | --------------------------------------------------------- |
| **[Five9](/integrations/voice/sip/five9)**                              | Studio UI  | SIP trunking, auth tokens, metadata exchange              |
| **[NICE CXone](/integrations/voice/sip/NICECXone)**                     | Studio UI  | Signal API handoffs, pseudo-number routing                |
| **[Twilio](/integrations/voice/twilio)**                                | Studio UI  | Marketplace connector, TwiML/Studio routing, Flex handoff |
| **[Amazon Connect](/integrations/voice/amazon-connect/amazon-connect)** | Studio UI  | DynamoDB contact flows, Connect analytics                 |
| **[Genesys](/integrations/voice/sip/genesys)**                          | Studio UI  | BYOC trunks, sequential failover, custom SIP headers      |
| **[Dialpad](/integrations/voice/dialpad)**                              | Studio UI  | Cloud contact center, call management                     |
| **[Custom SIP](/integrations/voice/sip/custom-sip)**                    | Managed    | SIP header access, SIP INVITE/REFER transfers             |
| **[DNI Pooling](/integrations/voice/dnis-pool)**                        | Managed    | Rotating number pool for metadata passing                 |

<Note>
  Custom SIP and DNI Pooling require coordination with your PolyAI account manager. All other telephony integrations can be connected directly from Agent Studio.
</Note>