When the FTTH user has the fault phenomenon of "off-hook and no power", the possible reasons are? (Multiple choice)

When the FTTH user has the fault phenomenon of "off-hook and no power", the possible reasons are? (Multiple choice)
A . Phone failure
B. POTS port failure
C. OLT failure
D. The line between the ONU and the phone is faulty

View Answer

Answer: ABD