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Troubleshooting - IBM -4900 Installation And Operation Manual

Advanced home/office 4 line cordless telephone with caller id
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Intercom, line status, auto-answer, privacy or auto-line selection are inoperable.
Check if Lines
and 2 are cross wired in the wall jack.
If used, see if you may have installed your 2-line adapter incorrectly.
Be sure all extensions in the system are connected to [LINE I].
Check the assigned extension codes, making sure they are unique.
Be sure the length of cable between stations does not exceed 300 feet.
Check that all phone lines are correctly connected to each station (every [LINE I] is connected to
the appropriate line, every [LINE
Remove all RFI filters from the system wiring. You may also need to contact your local telephone
company to have any RFI filter removed from the company side of the connection.
No dial tone/phone will not dial out.
Can' t hear the ring signal.
Can' t hear the ring signal on one line only.
While on a call do you hear another call on the line or are you experiencing radio frequency
Reaching the wrong number in speed dialing.
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