48028: Outgoing conversation: Unauthorized use of the proxy address

A conversation could not be created because your Twilio account is not authorized to use the provided Twilio proxy address.

• The outgoing conversation callback returned a Twilio proxy number that was created under a different Twilio account.

• Make sure that the proxy_address value that is returned from the Outgoing Conversation callback belongs to the Twilio account under which the conversation is being created.
  • Check out the docs on how to configure your Twilio credentials in the integration service.