the results of the experiment in the exchange of voice service providing method

摘要

this invention is a digital type telephone system subscriber line associated with the defect detection and defect status report) on the test device, the flow path, a detection output terminal uc73cub85cuc368 sikkim, the operator is required quality of information can be used to go to, the terminal device can use state or the presence of the user's maintenance staff exchange system from the side of the problem is not to uc788uc5c8. in this invention is the result of the service output, can output the voice service device or use the telephone line to which the terminal device is in operation, and is convenient and accurate to judge the uc6d0uc778uc744 quality can be obtained.