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HUAWEI ME909u-521 LTE LGA Module
Application Guide
ECM Application Scenarios
Issue 01 (2013-07-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
22
4. The module responses the service discover, and then sends the IP and DNS
address which is obtained from the PDP active process to the network managing
device.
4.1.2 Troubleshooting
Scenario
Possible Error Information
Solution
AT^NDISDUP=1,1,"1234
"
+CME ERROR: SIM failure
No SIM card is
detected. Insert a SIM
card.
AT^NDISDUP=1,1,"4321
","huaei","huawei",1
OK
^NDISSTAT: 0,33,,"IPV4"
^NDISEND:1,29
NDISEND indicates the
failure reason during the
dial-up.
29 indicates that the
authenticated
information is not
correct.
AT^NDISDUP=1,1,"abcd
"
OK
^NDISSTAT: 0,33,,"IPV4"
^NDISEND:1,33
NDISEND indicates the
failure reason during the
dial-up.
33 indicates that request
service is not specified.
In this case, the network
don not support this
APN "abcd".
4.2 Querying the Dial-up Connection State
4.2.1 Reference Process
Command
Description
AT^NDISSTATQRY?
Query the dial-up connection state.
^NDISSTATQRY: 0,0,,IPV4
OK
Report that the connection is not set up.
AT^NDISSTATQRY?
Query the dial-up connection state.
^NDISSTATQRY: 1,,,IPV4
OK
Report that the connection is set up.