### Answer Based on the available sources, there are a few potential causes for this issue: Check Allowed Country List Configuration Your phone number might have restrictions on which countries can call it. The phone number configuration includes an

allowed_inbound_country_list

field that specifies which countries are permitted to make inbound calls [(1) ]() . If this list is set but doesn't include "US", calls from US numbers would be blocked . Verify Agent Binding Ensure your inbound agent is properly bound to the number. The phone number should have either

inbound_agent_id

set or the

inbound_agents

array configured with at least one agent . Common Troubleshooting Steps Based on similar cases in the community: 1. Check your Retell dashboard to confirm the inbound agent hasn't been automatically disabled or reset to "None" [(2) ]() 2. Verify the number appears correctly in your phone number list and shows the bound agent 3. Check if calls appear in your call history - if they don't show up at all, there may be a configuration issue If Using Custom Telephony/SIP Trunking If you imported this number via SIP trunking rather than purchasing directly from Retell, double-check your origination settings in your SIP trunk provider and ensure the configuration is correct [(3) ]() . The FAQ notes that Retell cannot validate if the setup works until a call is actually made . If none of these resolve the issue, I recommend checking the call logs in your Retell dashboard for specific error codes or reaching out to Retell support with the phone number details for further investigation.

​ To learn more, see the sources I considered: [[1] Get Phone Number](https://docs.retellai.com/api-references/get-phone-number) [[2] Issue with Inbound Voice Agent](https://discord.com/channels/1186424376300679209/1413628905235021887) [[3] Custom Telephony Overview](https://docs.retellai.com/deploy/custom-telephony) ​

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

### Answer Since you've confirmed the agent binding is correct and you purchased the number directly from Retell (not imported via SIP) , here are the specific configuration issues to check: Geographic Restrictions Configuration Your number may have

allowed_inbound_country_list

configured to exclude US callers [(1) ]() [(2) ]() . When this list is set but doesn't include "US", calls from the United States will be automatically rejected [(1) ]() . To check this via API:

javascript
import Retell from 'retell-sdk';
const client = new Retell({
 apiKey: 'YOUR_RETELL_API_KEY',
}) ;
const phoneNumberResponse = await client.phoneNumber.retrieve('+14157774444') ;
console.log(phoneNumberResponse.inbound_agent_id) ;

[(2) ]() Look specifically at the

allowed_inbound_country_list

field in the response . If it's set to a list that doesn't include "US", that's your issue [(1) ]() . How to Fix It You can update the allowed countries via the dashboard or API. To allow US calls, ensure "US" is in the

allowed_inbound_country_list

[(1) ]() [(3) ]() . To remove all restrictions and allow calls from any country, set this field to

null

[(1) ]() . Other Configuration Checks Since you mentioned the agent binding is correct, also verify: 1. The

inbound_agents

array (if using A/B testing) has agents with weights that sum to 1 [(2) ]() [(4) ]() 2. No

inbound_webhook_url

is configured that might be rejecting calls The "restriction" error message strongly suggests the

allowed_inbound_country_list

is the culprit since you're receiving calls from the US [(1) ]() .

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] Fraud Protection](https://docs.retellai.com/reliability/fraud-protection) [[2] Get Phone Number](https://docs.retellai.com/api-references/get-phone-number) [[3] Create Phone Number](https://docs.retellai.com/api-references/create-phone-number) [[4] Receive calls](https://docs.retellai.com/deploy/inbound-call) ​