Installation guide

TROUBLE ON ONE TELEPHONE
Hearing Symptoms
User in a noisy room has trouble hearing outside or intercom calls
User hears excessive breath noises from himself or herself
User with off-premises telephone has trouble hearing
Outside caller intermittently has trouble hearing a user
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NOTE:
Use this section only if you have isolated the problem to one voice terminal or
telephone (in other words, it is not a systemwide problem).
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