eSpace IAD
Troubleshooting
2 Analy zing and Rectify ing Faults
Issue 02 (2012-02-29)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
Step 4
Contact Huawei technical support.
----End
2.1.13 No Calling Number is Displayed on Phones Connected to
the IAD132E(T)
Symptom
When a PSTN user makes a call to an intra-office user through the FXO port on the
IAD132E(T), the calling number is not displayed to the intra-office user.
Cause
The possible causes are as follows:
The FSK signal is too weak to be detected by the FXO port.
The calling side does not send the calling number.
The phone is faulty.
Solution
Step 1
Contact the carrier to check whether the CLIP service is enabled for the PSTN user connected
to the IAD.
If no, contact the carrier to enable the CLIP service.
If yes, go to
Step 2
Replace the phone with a phone that is running properly, and check whether the fault is
rectified.
If yes, the phone is faulty. Replace the phone.
If no, go to
Step 3
Gradually lower the DSP gain.
Run the following command and check whether the fault is rectified:
TERMINAL(advanced-config)#DSP fsk GAIN 6/7/8
If yes, the procedure ends.
If no, go to
Step 4
Check whether the CLIP function is enabled for the FXO port on the IAD132E(T).
If yes, go to
If no, run the
sip user
port number
fxo-clip yes
command. Fox example:
Terminal(config)#sip user 24 fxo-clip yes
This command is available only for IADV300R001C03SPC900, IADV300R001C04SPC300, and later
versions.
Step 5
Capture logs about the FXO port, and check whether there are records about FSK signals or
FSK detection timeout.
