To ensure your phone number is in the correct E.164 format for Retell AI, it should include the country code prefixed with a plus sign (+), followed by the number with no spaces or special characters(1)(2).
For example, a valid E.164 format would be "+14157774444"(1)(2).
Common E.164 formatting issues:
- Ensure the number includes the
+prefix followed by the country code(1)(2) - Remove any spaces, dashes, or special characters from the number(1)(2)
- For a US number, it should look like
"+12137771234"rather than"(213) 777-1234"or"2137771234"(2)
If you’re experiencing issues with number format, double-check that there are absolutely no dashes, spaces, or other characters in your phone number(3).
If you’re using a local VOIP provider that doesn’t automatically provide numbers in E.164 format, you may need to handle normalization on your side with a PBX dialplan or SBC rule(4). Some users have resolved issues by changing the destination number format to +E.164 in their telephony provider settings(5).
If the issue persists after verifying the format, please share your org ID and a video showing the steps you’re taking so the support team can investigate further.
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