I connected my Twilio phone number, and when I make a test call, I get an invalid destination. What’s the problem?

When you get an “invalid destination” error with your Twilio phone number connected via SIP trunking, check these common issues: Termination SIP URI Configuration (1) Check your Termination SIP URI for spaces and remove them (1) . Also, use a localized termination URI near your region (1) . Credential…

Hello @Sevana , Can you share the call ID, or a screenshot, or the error you are seeing?

I don’t have information about a specific error from @Sevana in the available sources. However, I can help you understand how to retrieve call information and debug issues with Retell AI. To get call details using the call ID, you can use the Get Call endpoint (1) . The call ID is a unique identifier…

[image] Omar_Ashraf: Hello @Sevana , Can you share the call ID, or a screenshot, or the error you are seeing? call_18bd28fd9b8bf77ddb266b37d75

Based on the call ID you provided (call_18bd28fd9b8bf77ddb266b37d75), the “invalid destination” disconnection reason indicates an outbound call that did not connect because the number dialed is invalid (1) . Here are the specific steps to troubleshoot: Check the Destination Number Format (1) The inv…

Problem with outbounding call

Support Help

Omar_Ashraf January 19, 2026, 9:34pm 7

The number you are trying to call is your number? If not, are you sure this number is in service?

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Problem with outbounding call

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