eSpace IAD
Troubleshooting
2 Analyzing and Rectifying Faults
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
example, if the IP address of the active MGC is 192.168.10.10, the operations are as
follows:
TERMINAL(config)#mgcp mgc 1 address 192.168.10.10
− If the MG domain name is not the same as that set on the MGC server, run the mgcp
mg-domain-namedomain-name command to set the MG domain name again.
− The interval for the IAD to register with the MGC may be too long after reboot (70s
by default), you can run the mgcp protocol mwd-valtimer command to decrease the
registration waiting interval. For example, run the following command to set the
interval to 20s:
TERMINAL(advanced-config)#mgcp protocol mwd-val 20
− Ensure that the authentication methods of the IAD and the MGC are consistent. If the
authentication methods are inconsistent, run the mgcp authentication command in
the global configuration mode to configure the authentication method.
Step 6 Check whether the mapping between the cable sequence and ports is correct. For details, see
the product documentation.
If no, reconnect cables.
If yes, go to Step 7.
Step 7 Run the display pstnport state command to query the working status of the port.
For example, to query the user of port 0 on the IAD132E(T), the operations are as follows:
TERMINAL#display pstnport state 0 /*If the port n umber is not specified, all ports are
queried.*/
--------------------------------------
Port PortType State
--------------------------------------
0 FXS IDLE
/*FXS is the port for SIP users, FXO is the port for PSTN users. State IDLE indicates
that the port is in idle state. If the state is BUSY, it indicates that the port is
occupied.*/
For IAD132E(T), if the IAD has 8 FXO ports and 24 FXS ports (OSU board + ASID board) and all the 8
FXO ports are configured with the private lines of the 8 FXS ports of the IAD, the other 16 FXS users
cannot initiate outgoing calls on the host. In this case, you are advised to set a maximum of 7 private
lines.
Step 8 Run the display dsp-channel command to query the configuration information such as DSP
port status and send/receive gains.
Step 9 Run the display dsp-chip command to check whether the DSP chip is in normal state. If the
DSP chip is damaged, return the IAD to the factory for repairing.
Step 10 Check whether the pickup event is correctly reported and whether the softswitch responses.
For details, see Tracing Signaling.
Step 11 Configure the original IAD according to the configuration data on an IAD that is running
properly, and check whether the fault is rectified.
If yes, the IAD is not faulty.
If no, go to Step 12.
Step 12 Contact Huawei technical support.
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