Example methods disclosed herein include parsing a request to obtain input criteria associated with the request, the request for authorizing an outdial communication service call initiated by a message center. Such example methods also include retrieving authorization rules correlating the input criteria to an authorization result for the outdial communication service call, the input criteria comprising a first input criterion having one of at least two values, a first value indicating that the outdial communication service call is for a real-time outdial service initiated in response to an indial communication service received at the message center, a second value indicating that the outdial communication service call is for a non-real-time outdial service initiated by an application server associated with the message center. Such example methods further include evaluating the authorization rules using the input criteria to determine whether the outdial communication service call is authorized.