Faq 2: busy tone learning – PLANET VIP-1680 User Manual
Page 74
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FAQ 2: Busy Tone Learning
STEP 1: Let the FXO port connect to PBX ext.
STEP 2: To dial to the FXO port from PBX another ext.
STEP 3: Hear dial tone, please dial FXS port number. When
FXS port ring, please hang up the phone.
STEP 4: At this moment, hear busy tone and also press “y” to
learning.
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