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4.1 Troubleshooting
156 Installation Manual
4.1 Troubleshooting
4.1.1 Installation
PROBLEM PROBABLE CAUSE SOLUTION
Extension does not operate. Bad extension card. Exchange the card for a known working one.
Bad connection between the
Hybrid IP-PBX and
telephone.
Take the telephone and plug it into the same
extension port using a short telephone cord.
If the telephone works, then the connection
between the Hybrid IP-PBX and the
telephone must be repaired.
A telephone with an A-A1
relay is connected.
Use a 2-wire cord.
Set the A-A1 relay switch of the telephone to
the "OUT" or "OFF" position.
Bad telephone. Take the telephone and plug it into another
extension port that is working. If the
telephone does not work, replace the
telephone.
The number of terminal
equipment exceeds the
capacity of the Hybrid IP-
PBX with the supplied AC
adaptor only.
Connect an additional AC adaptor.
Improper operation. Press the Reset Button (refer to "4.1.4 Using
the Reset Button").
Noise on external paging. Induced noise on the wire
between the Hybrid IP-PBX
and the amplifier.
Use a shielded cable as the connection wire
between the Hybrid IP-PBX and amplifier. A
short shielded cable is recommended.
Distorted external music. Excessive input level from
external music source.
Decrease the output level of the external
music source by using the volume control on
the music source.
Alternate Calling—Ring/Voice
and Live Call Screening
(LCS) do not function as set
when using a Wireless Phone
(KX-T7880/KX-T7885/KX-
TD7894/KX-TD7895).
Voice-calling mode and
Hands-free mode with LCS
are not available with
Wireless Phones.
Switch the calling mode to ring-calling.
Set the LCS mode to "Private".
The ALARM indicator on the
front of the cabinet turns on
red.
A major system error occurs
in the Hybrid IP-PBX.
See the error log using the KX-TDA
Maintenance Console (refer to "4.1.5
Troubleshooting by Error Log").