Telephone installers and repairers perform some or all of the following duties:
A. Operate computerized testing systems to conduct service tests on customer lines and equipment
B. Determine the nature, cause and location of service trouble
C. Initiate the dispatch of appropriate repair personnel
D. Complete test reports and maintain test and service records
E. May assist repair personnel to test lines, circuits and systems, isolate and clear cable faults and verify records.