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Check whether the hardware device and the bearer network are functioning properly and whether the configuration data is correct when the global service is congested.
Context
When global service congestion occurs, you can rectify the fault by checking the hardware device, network, and configuration data in sequence. Figure 1 shows the process of handling global service congestion.
Figure 1 Process of handling global service congestion
Symptom
The global service is congested in any of the following conditions:
ϒ⁄All the media gateways cannot register successfully, for example, being disconnected immediately after they are registered.
ϒ⁄Calls are congested on all user terminals. For example, users fail to make or receive calls, or fail to hear the dial tone or busy tone after they hang up the phone.
ϒ⁄Calls are congested in all office directions. For example, users fail to make or receive calls.
Impact Scope
The service of the unified gateway in the local office is interrupted or congested globally for a long time.
Procedure
1.Check whether the unified gateway is functioning properly.
If the unified gateway is faulty, rectify the fault by referring to Handling a Device Crash.
2.Check whether the bearer network is functioning properly.
Use the ping command to check whether the unified gateway successfully communicates with the congested gateway. For details, see Checking Network Status.
If the communication between the unified gateway and the media gateway, terminals, or other switches is abnormal, handle the bearer network fault.
3.Check whether the global service congestion is caused by modification of configuration data.
When the unified gateway is running, do not modify configuration data. If configuration data is modified, the system may fail to work.
a.Choose Host Log > Call Log on the LMT.
b.Click Module Switch Configuration and select a module.
c.Check the module calling logs and the service operating process to locate the faulty module.
d.Click Operate Log and view the device operation logs. Specifically, check whether the fault occurs due to incorrect modification of the configuration data. If yes, restore the configuration data.
4.Check whether the fault is rectified.
a.If the fault is rectified, proceed to 6.
b.If the fault is not rectified, proceed to 5.
5.Obtain technical support.
If you fail to rectify the fault following the emergency fault handling process, collect related fault information and contact your service provider for technical support.
6.Output a fault handling report.
Parent Topic: Quick Troubleshooting