I have 4 phones in my office and one of the phones is having issues, when I plug in lines 1&2 it works fine but when I plug in 3&4 it showes that someone is on 4? I've tried other lines in the office and it always leads back to this phone being the problem.

Asked by Mark on 08/14/2013 1  Answer

ManualsOnline posted an answer 11 years, 3 months ago

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