AT&T 518-600-016 manual Troubleshooting, Testing Tie Lines

Section 4: Troubleshooting

Basic Troubleshooting Procedures	4-1
Troubleshootig Checklist	4-2
Merlin II System Planning Forms	4-4
General Operating Conditions	4-5
0n-Line Module Swap	4-7
Tie Line Troubleshooting	4-11
Testing Tie Lines	4-11

Procedures for Specific Symptoms

Locating the Symptom Difficult to Place CaIls

Caller Can’t Hear Person Answering Person Called Can’t Hear Caller Calls on Hold Are Disconnected Calls Are Cut Offer Dropped Phone Doesn’t Ring

Phone Constantly Rings Lights, Speaker, Ringing Problems No Lights or Dial Tone

Line Button Light Shows False Status BIS-34 Lights Don’t Go Off HFAI-10 Lights Don’t Turn On Programmed Feature Doesn’t Work Module Doesn’t Work

Changed Intercom Numbers or Features Recall Button Doesn’t Work

Recall Disconnects Line When Behind Switch System Loses Its Memory Due to a Power Failure

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