5.1 Troubleshooting
5.1
Troubleshooting
5.1.1
Installation
PROBLEM
You cannot make/receive calls
via an IP network.
IP-PTs/SIP Extensions do not
operate.
180
Installation Manual
PROBABLE CAUSE
•
IP-EXT/IP-GW/DSP card
malfunction
•
IPCMPR card malfunction
•
Not enough activation keys •
•
Poor connection
•
Network malfunction
•
IP-EXT/DSP card
malfunction
•
IPCMPR card malfunction
•
Not enough activation keys •
•
IP-PT/SIP Extension not
registered
•
IP-PT/SIP Extension
malfunction
•
Poor connection
SOLUTION
•
Replace the corresponding card.
•
Replace the IPCMPR card (be sure to
turn off the PBX when replacing).
Purchase additional activation key
cards. Please consult a certified dealer
for details.
•
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 (328 ft) in
length.
•
Make sure that a straight cable is used
for connection to a switching hub.
•
Make sure that all network devices in
use are switched on.
•
Make sure that there is no unwanted
firewall in the IP network.
•
Replace the corresponding card.
•
Replace the IPCMPR card (be sure to
turn off the PBX when replacing).
Purchase additional activation key
cards. Please consult a certified dealer
for details.
•
Register the corresponding IP-PT/SIP
Extension.
•
Replace the IP-PT/SIP Extension.
•
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 (328 ft) in
length.
•
Make sure that a straight cable is used
for connection to a switching hub.