Trying to create a call via the REST API. Getting a 400 Bad Request with error code malformed_participant_address. Here is the payload:
{
"to": { "phoneNumber": "+15550199" },
"from": { "phoneNumber": "+15550100" }
}
The numbers look valid. Tried removing the +. Tried using uri instead of phoneNumber. Still getting the same error. Is there a specific format for the participant object in this endpoint?