A system and method for assisting telephone service technicians in repairing communications lines may include storing test parameters for testing operation of a communications line. An operational parameter of communications over the communications line may be tested and a determination as to whether the operational parameter meets an operational criteria established by at least one of the test parameters may be made. The measured operational parameters and a test result indicator may be stored. If the operational parameter met the operational criteria, then an indication that the operational parameter passed a test may be made. Otherwise, (i) an indication that the operational parameter did not pass the test, (ii) possible causes for the operational parameter failing the test, and (iii) recommendations for correcting at least one possible problem that lead to the operational parameter not passing the test may be displayed for a technician.