Troubleshooting guide

Diagnosing Problems
217
Identifying the Current ICP
You can determine the current ICP controller for a 5140 or 5240 IP Appliance by using the
phone’s built in debug function.
1. Press and hold down the volume up and volume down keys.
2. Dial 33284.
3. Release the volume up and volume down keys.
4. Select Network.
5. Select ICP Server IP(s).
Select Current ICP Server to display the IP address of the current ICP controller.
Checking T1/E1 Resiliency Alarms
Trunk Alarms
If the primary controller is supporting the resilient trunks, the resilient trunks are recorded in
the Trunks category of the Alarm command output. During a failover from the primary to
secondary controller, the failover of the T1/E1 trunks will generate an alarm on the primary
controller if the programmed trunk alarm threshold is exceeded. After the trunks fail back to the
primary, the system checks the trunk alarm category to determine if the alarm threshold is still
exceeded. If the trunks are operating normally on the primary, and the alarm threshold is no
longer exceeded, then the system clear the trunk alarm.
During normal operation, resilient trunks that are supported by the T1/E1 Combo MMC in the
primary controller are “Not Seizable” on the secondary controller. These “Not Seizable” trunks
do not generate alarms on the secondary controller. Instead, the secondary controller includes
the resilient trunks in the system total of the “Inactive Trunks” alarm category.
After a failover, the secondary controller controls the resilient trunks. The resilient trunks are
temporarily listed in the “Trunk” alarm category of the secondary controller. After the resilient
trunks fail back to the primary controller, the trunks reappear in the “Inactive Trunk” alarm
category of the secondary controller.
Digital Link Alarms
On the primary controller, digital links that are associated with resilient trunks generate alarms
if the links are not in a healthy state. On the secondary controller, the digital links for resilient
trunks are included in the system total of the “Digital Links” alarm category.
Netsync Alarms
You can program a resilient trunk on the primary controller as a netsync source. However, do
not program a resilient trunk on the secondary controller as netsync source because the system
will generate a minor netsync alarm.