Choosing your setup
How you connect phone numbers depends on your existing telephony infrastructure and what you need:| Option | Best for | What you get |
|---|---|---|
| Buy a number | Quick setup, no existing telephony provider | Purchase a number directly from PolyAI — fastest path to a working agent. |
| Twilio integration | Teams already using Twilio for voice or SMS | Connect your existing Twilio numbers and keep your current telephony stack. Supports voice, SMS, and Flex contact center routing. |
| Outbound calling | Proactive outreach (reminders, follow-ups, notifications) | Let your agent initiate calls via the API or SIP infrastructure. |
You can also connect through other contact center platforms like Genesys, Five9, or NICE CXone via SIP. See Integrations for the full list.
Integration options
Buy a number
Purchase a phone number directly from PolyAI — no external provider needed.
Twilio integration
Connect your existing Twilio account for voice, SMS, and contact center routing.
Outbound calling
Configure your agent to make proactive outbound calls for reminders and follow-ups.
Twilio integration guides
- Twilio overview — Benefits and setup overview
- Phone number integration — Connect a Twilio-hosted number
- SMS integration — Set up SMS messaging with Twilio
- Twilio Flex integration — Advanced contact center routing
Outbound calling
PolyAI supports proactive customer outreach through outbound calling. Use this for appointment reminders, follow-ups, and automated notifications.- Outbound calling overview — Methods and best practices
- Outbound Calling API — Programmatically trigger calls
- SIP integration — Route through your SIP infrastructure