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You can buy a phone number through PolyAI without setting up a telephony provider of your own. PolyAI buys the number on Twilio, manages it for you, and routes it to your agent as soon as the purchase finishes. Usage is billed through PolyAI at 1.5¢ per minute.
Managing many numbers? The Agents API exposes bulk import, get, and reassign operations.

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Buy a number

In Agent Studio, go to Integrations, open the Telephony tab, click Add number, and choose Buy Twilio number. Then:
  • Pick a Country: United Kingdom, United States, Canada, Australia or Ireland.
  • For the United States and Canada, optionally enter a 3-digit Area code. PolyAI only searches the area code you enter and doesn’t fall back to a nearby one, so leave it blank unless you need a specific region.
  • Pick the Environment that should answer calls on the number, and optionally a Variant.
  • Click Buy number. The number appears in the Telephony table and calls go straight to your agent.
See Twilio: Buy Twilio number for the full steps, error messages, and what to do if a purchase fails.
On some accounts, buying a number in the United Kingdom, Australia or Ireland needs an approved regulatory bundle first. Agent Studio tells you when this applies. Submit the bundle on the Voice > Numbers page. Review usually takes 1 to 7 business days, and one approved bundle covers every project in your account. See Regulatory approval.
Sandbox has no phone numbers, so test there over an in-app call instead. See Environments.
Use separate numbers for each environment so test calls never reach Live.

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Delete a number

In the Telephony table, open the actions menu on the number, click Delete number, and confirm. Calls to the number stop reaching your agent and the number is released. You can’t undo this.

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Next steps

Twilio

Buy a Twilio number, or connect your own Twilio account

Forward your existing number

Keep the number callers know and forward it to a new PolyAI number

Set up outbound calling

Configure proactive outbound calls for reminders and follow-ups

Voice integrations

Every way to connect telephony to your agent
Last modified on October 5, 2026