​ To learn more, see the sources I considered: [[1] Import Phone Number](https://docs.retellai.com/api-references/import-phone-number) [[2] How to Choose the Right Telephony System in 2024 | Retell AI](https://www.retellai.com/blog/how-to-choose-the-right-telephony-system-in-2024) ​

### Answer --- I don't have specific information in the available sources about porting numbers out of Retell-provided telephony or porting numbers into Retell's native telephony service. The documentation does cover importing phone numbers from external providers (like Twilio, Vonage, or Telnyx) into Retell via SIP trunking. [(1) ]() [(2) ]() This allows you to use numbers you already own with Retell's AI agents. For porting numbers specifically when using Retell's built-in telephony, I'd recommend reaching out to support directly for clarification on their porting policies. Check out these potentially useful sources: - [Import Phone Number]() - [How to Choose the Right Telephony System in 2024]() Would you like me to provide a general answer about number porting, or would you prefer to contact Retell support at [Contact Sales]() ?

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.