Huawei eSpace IAD - A Phone Connected to the IAD Does Not Ring for Incoming Calls; When IAD Users Make Outgoing Calls Using the IMS, the con Nection Rate Is Only 10

eSpace IAD
Troubleshooting
2 Analyzing and Rectifying Faults
Issue 02 (2012-02-29)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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2.1.16 A Phone Connected to the IAD Does Not Ring for
Incoming Calls
Symptom
Sometimes, a phone connected to the IAD does not ring for incoming calls. Users can use the
phone to make outgoing calls.
Cause
The possible causes are as follows:

The phone model is not supported.

PCs connected to the IAD affect the voice service.
Solution
Step 1 Replace the phone with a phone of another model, and check whether the fault is rectified.

If yes, the phone model is not supported. Replace the phone.

If no, go to Step 2.
Step 2 Compare signaling streams and check whether the signaling stream is normal when the fault
occurs.

If yes, go to Step 3.

If no, locate the fault based on the abnormal signaling.
Step 3 Check whether a PC or cascaded switch is connected to the IAD.

If yes, connect the PC or cascaded switch to the upstream switch, because PCs or data
communication devices cannot be directly connected to the IAD.

If no, go to Step 4.
Step 4 Contact Huawei technical support.
----End
2.1.17 When IAD Users Make Outgoing Calls Using the IMS, the
Connection Rate Is Only 10%
Symptom
When IAD users under the SoftCo make outgoing calls using the IMS, the connection rate is
only 10%. Incoming calls are normal.
Cause
The possible cause is that multiple IADs use one EID on the softswitch.