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Appendix
Appendix 3/(4 blank)
influence will be higher than at the time the service call is
made. If noise was the subscriber’s complaint, then balance
is the cause of problem; if the complaint was not related to
noise, the low balance may not be a problem. Noise caused by
balance is a common cause of multiple service calls. The
noise and power influence levels are more likely to be
acceptable at the time of the service call than when the
subscriber is at home and using the phone during morning and
evening peak power periods. An unacceptable balance
reading is the only clue in this situation.