A testing system for an interactive voice messaging system comprises a processor, a memory storing processor procedures and test cases, and a telephonic interface. The processor procedures include a master procedure and subprocedures for debugging the test case, retrieving and displaying documents, storing and retrieving database items, test case procedure development and editing, and test report generation. The processor procedures are all hyperlinked together so that the testing system can call any of the procedures at specified times in order to permit a user to read or modify database entries, documents and test cases when necessary. A method for testing an interactive voice messaging system includes steps for performing the test case control system of the present invention. The present apparatus and method are also applicable to testing private branch exchanges (PBX) and other telephonic based systems.