21264: ‘From’ phone number not verified

You received an inbound phone call to a Twilio phone number owned by your trial account, but the 'From' number is not a Verified Caller ID on your account. In order to receive calls to a Twilio number during a free trial, you must first verify your ownership of the phone number that is placing the call.

You received an inbound phone call to a Twilio phone number owned by your trial account, but the 'From' number is not a Verified Caller ID on your account. In order to receive calls to a Twilio number during a free trial, you must first verify your ownership of the phone number that is placing the call.

You can verify phone numbers from the phone numbers section of your account portal.