4.1 Troubleshooting
180 Installation Manual
300* Digital trunk out of
synchronization
• Network (digital CO line)
malfunction
• Optional service card
malfunction: PRI, T1
• Wrong A/B switch setting:
PRI, T1
• Check the signals from the network
• Check the cable
• See if the A/B switch is set to A on the
corresponding optional service card
• See if the corresponding optional
service card is installed properly
• Replace the corresponding optional
service card
301* Digital trunk RAI
reception
302* Digital trunk AIS
reception
303* Multiframe out of
synchronization
304* Frame error
305* Data Link failure • Data link between the CS and
CSIF card or DHLC/DLC card
failed
• Data link between the
network and PRI card failed
• Data link between the
network and IP-GW card
failed
• Check the connection between the CS
and CSIF card or DHLC/DLC card
• Check the connection between the
network and PRI card
• Check the connection between the
network and IP-GW card
307 LAN No Carrier • IP-GW card not connected to
the LAN
• Check the connection between the
LAN and IP-GW card
308 IP-GW LAN Loop
back Error
• Detection of IP-GW LAN
Loop back Test error
• Replace the corresponding optional
service card
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
309 IP-GW Core Data
Link Error
• Detection of IP-GW Core data
Link error
• Press the Reset Button
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
310* Port Link Failure • Voice Processing System
malfunction
• Ports defective on optional
service card: DHLC, DLC
• Check the Voice Processing System
• See if the corresponding optional
service card is installed properly
• Replace the corresponding optional
service card
320 IP-GW H.323
Dummy Call Test
Error
• Detection of IP-GW H.323
Dummy Call Test error
• Replace the corresponding optional
service card
• Collect the log data of IP-GW (refer to
the documentation for the IP-GW card)
321 IP-GW
Gatekeeper Error
• Detection of Gatekeeper
access error
• Check the IP address setting of the
Gatekeeper
• Check whether the Gatekeeper is
connected to the network and work
properly
• Check the route to the Gatekeeper
322 IP-GW
Gatekeeper
Registration Error
• Gatekeeper Registration is
failed
• Check the Gatekeeper setting
Error Code Error Message PROBABLE CAUSE SOLUTION