### Answer Based on the available documentation, purchasing phone numbers directly through Retell AI currently only supports US and Canada with the

country_code

parameter accepting

US

or

CA

values. [(1) ]() For France and other European numbers, you have two options: 1. Import numbers via Twilio Elastic SIP Trunking You can purchase European numbers directly from Twilio and then import them into Retell AI: [(2) ]() - Create an Elastic SIP Trunk in Twilio - Purchase your French/European numbers in Twilio and move them to the trunk - Set up termination (for outbound) and origination pointing to

sip:sip.retellai.com

- Import the numbers to Retell via the dashboard or [Import Number API]() 2. Use Telnyx as provider When creating numbers through Retell, you can specify

"number_provider": "telnyx"

which may offer different regional availability. [(1) ]() Important note: There have been reported issues with non-US numbers, particularly French numbers, having difficulty making outbound calls. [(3) ]() If you encounter issues, check the [custom telephony troubleshooting guide]() . For European numbers, I'd recommend purchasing through Twilio directly and importing via SIP trunking for the most reliable setup.

​ To learn more, see the sources I considered: [[1] Create Phone Number](https://docs.retellai.com/api-references/create-phone-number) [[2] Twilio](https://docs.retellai.com/deploy/twilio) [[3] I cannot make an outbound call with my french number imporetd from twilio](https://discord.com/channels/1186424376300679209/1336001584391258132) ​

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