enum | {
e_gatekeeperRequest,
e_gatekeeperConfirm,
e_gatekeeperReject,
e_registrationRequest,
e_registrationConfirm,
e_registrationReject,
e_admissionRequest,
e_admissionConfirm,
e_admissionReject,
e_locationRequest,
e_locationConfirm,
e_locationReject,
e_nonStandardMessage,
e_serviceControlIndication,
e_serviceControlResponse,
e_callProceeding,
e_connect,
e_alerting,
e_facility
} |