### Answer The error indicates that the number you're trying to call (+17874323278, which is in Puerto Rico - PRI) is not included in your telephony provider's whitelisted countries (USA, CAN) . [(1) ]() The

telephony_provider_permission_denied

error with SIP status code 403 means your telephony provider is blocking the call. [(1) ]() [(2) ]() To resolve this: 1. Check Voice Geographic Permissions in your telephony provider (Twilio, Telnyx, etc.) to enable calls to Puerto Rico [(2) ]() 2. If using numbers purchased from Retell, note that they can only make calls to US numbers - for international calls including Puerto Rico, you need to use custom telephony 3. Verify your SIP trunk configuration allows calls to the destination country [(3) ]() The error is coming from your telephony provider's restrictions, not Retell. [(2) ]() You'll need to contact your provider's support to enable calling to Puerto Rico or adjust your geographic permissions settings.

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

​ To learn more, see the sources I considered: [[1] Debug outbound connection issues](https://docs.retellai.com/reliability/debug-outbound-call) [[2] I keep getting SIP status code: 403 SIP error category: telephony_provider_permission_denied Error](https://discord.com/channels/1186424376300679209/1389628288137429032) [[3] Custom Telephony Overview](https://docs.retellai.com/deploy/custom-telephony) ​