Automatic Telephone testing device

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Presently we are using a telephone testing devise, its a simple machine to check the ic og speeach, ring and pause effects, all the activity would be manual, we are looking for automatic telephone test device, i need to connect the telephone to it and it should carry-out all the test and certifiy the telephone is "ok" or 'Bad" with details and nature of fault, is there any such test device available, pls suggest