7.1 Troubleshooting
7.1.1 Installation
PROBLEM
PROBABLE CAUSE
SOLUTION
You cannot make/receive
calls via an IP network.
•
DSP card malfunction
•
Replace the corresponding card.
•
Mother board
malfunction
•
Replace the mother board (be sure to turn
off the PBX when replacing).
•
Not enough activation
keys
•
Purchase additional activation key codes.
Please consult a certified dealer for
details.
•
Poor connection
•
Make sure that an 8-pin twisted pair cable
is used for connection.
•
Make sure that none of the CAT 5/CAT 5e
cables in use are over 100 m in length.
•
Make sure that a straight cable is used for
connection to a switching hub.
•
Network malfunction
•
Make sure that all network devices in use
are switched on.
•
Make sure that there is no unwanted
firewall in the IP network.
IP-PTs/SIP phones do not
operate.
•
DSP card malfunction
•
Replace the corresponding card.
•
Mother board
malfunction
•
Replace the mother board (be sure to turn
off the PBX when replacing).
•
Not enough activation
keys
•
Purchase additional activation key codes.
Please consult a certified dealer for
details.
•
IP-PT/SIP phone not
registered
•
Register the corresponding IP-PT/SIP
phone.
•
IP-PT/SIP phone
malfunction
•
Replace the IP-PT/SIP phone.
•
Poor connection
•
Make sure that an 8-pin twisted pair cable
is used for connection.
•
Make sure that none of the CAT 5/CAT 5e
cables in use are over 100 m in length.
•
Make sure that a straight cable is used for
connection to a switching hub.
•
Network malfunction
•
Make sure that all network devices in use
are switched on.
•
Make sure that the IP-PT/SIP phone is not
blocked by the firewall or other network
devices.
254
Installation Manual
7.1.1 Installation
Summary of Contents for KX-NS300
Page 92: ...4 Hook the main unit on the screw heads 92 Installation Manual 4 2 10 Wall Mounting...
Page 150: ...150 Installation Manual 4 13 Starting the KX NS300...
Page 248: ...248 Installation Manual 5 11 Automatic Configuration of Mailboxes...
Page 252: ...252 Installation Manual 6 1 Methods of Stacking Expansion Units...
Page 294: ...294 Installation Manual 8 5 Port Security...
Page 298: ...298 Installation Manual 9 2 System Prompt Languages...
Page 299: ......