5.1 Troubleshooting
236 Installation Manual
5.1 Troubleshooting
5.1.1 Installation
PROBLEM PROBABLE CAUSE SOLUTION
You cannot make/receive calls
via an IP network.
• IP-EXT/IP-GW/DSP card
malfunction
• Replace the corresponding card.
• IPCMPR card malfunction • Replace the IPCMPR card (be sure to
turn off the PBX when replacing).
• Not enough activation keys • Purchase additional activation key
cards. 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
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 Extensions do not
operate.
• IP-EXT/DSP card
malfunction
• Replace the corresponding card.
• IPCMPR card malfunction • Replace the IPCMPR card (be sure to
turn off the PBX when replacing).
• Not enough activation keys • Purchase additional activation key
cards. Please consult a certified dealer
for details.
• IP-PT/SIP Extension not
registered
• Register the corresponding IP-PT/SIP
Extension.
• IP-PT/SIP Extension
malfunction
• Replace the IP-PT/SIP Extension.
• Poor connection • Make sure that an 8-pin twisted pair
cable is used for connection.
• Make sure that none of the CAT 5
cables in use are over 100 m in length.
• Make sure that a straight cable is used
for connection to a switching hub.
