/ 19N0130943 02 Modular ICS 7.1 Installer GuideTypes of problems 589Misunderstanding a feature 589Programming errors 589Wiring connections 589Equipment defects 589General troubleshooting procedure 590Problems with telephones 591Set has faulty buttons, display, handset or other hardwareproblems 591Unreadable set display 591Telephone dead 592Running a Maintenance session to test a dead telephone593Replacing a telephone 593Emergency telephone dead 594Problems with lines 596Calls cannot be made (but can be received) 596Dial tone absent on external lines 597Hung lines at a telephone 598Auto-answer line rings at a telephone 599Prime telephone gets misdialed calls 601Selected lines read Not in service or Not available 602Selected line pool displays: No free lines 604Problems with optional equipment 606Analog Terminal Adapter 606Running a Maintenance session to test an ATA 606Auxiliary ringer 607External paging 608Music on Hold/Background Music trouble 608KIM not working 609Cold starting the KIM 609Problems with trunk cartridges service 611Digital Trunk Interface trouble 612Monitoring the T1 or PRI signal 614Problems with BRI service 615The BRI card is connected to the ISDN network (U loop) but theLED for one of more loops is not lit 615Solution 615Out of service displays when a BRI is selected(LED for loop is lit) 616All the LEDs on a BRI Card are flashing 616
