Huawei eSpace IAD - When the IAD Is Connected to the IMS, Users Cannot Make Calls to each Other

eSpace IAD
Troubleshooting
2 Analyzing and Rectifying Faults
Issue 02 (2012-02-29)
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Copyright © Huawei Technologies Co., Ltd.
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Solution
Step 1 Use the Wireshark to capture IAD1280 SIP signaling, and analyze these messages. If the
softswitch returns a 403 error response message to the IAD INVITE message, the server
recognizes but refuses to execute the request message.
Step 2 Check the data configuration, and clear conflict configuration to ensure that only one IAD
uses one EID on the softswitch.
Step 3 Check whether the fault is rectified.

If yes, the procedure ends.

If no, go to Step 4.
Step 4 Contact Huawei technical support.
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2.1.18 When the IAD Is Connected to the IMS, Users Cannot
Make Calls to Each Other
Symptom
When the IAD is connected to the IMS, users cannot make calls to each other.
Cause
The possible cause is that signaling interaction is abnormal.
Solution
Step 1 Capture IAD packets to analyze the signaling stream. If the IMS returns an error response
message to the IAD INVITE message, the IMS does not support the URI TEL format that is
used by the INVITE message.
Step 2 Run the sip soft-parameter support-telurl off command to change the TEL format to SIP
format.
Step 3 Check whether the fault is rectified.

If yes, the procedure ends.

If no, go to Step 4.
Step 4 Contact Huawei technical support.
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