Huawei ME909u-521 manual Querying the Dial-up Connection State, Troubleshooting, Reference Process

HUAWEI ME909u-521 LTE LGA Module
Application Guide	ECM Application Scenarios

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.

4.1.2Troubleshooting

	Scenario	Possible Error Information	Solution
	AT^NDISDUP=1,1,"1234		No SIM card is
		+CME ERROR: SIM failure	detected. Insert a SIM
"
			card.
		OK	NDISEND indicates the
			failure reason during the
	AT^NDISDUP=1,1,"4321		dial-up.
		^NDISSTAT: 0,33,,"IPV4"	29 indicates that the
	","huaei","huawei",1
			authenticated
		^NDISEND:1,29	information is not
			correct.
			NDISEND indicates the
		OK	failure reason during the
			dial-up.
	AT^NDISDUP=1,1,"abcd	^NDISSTAT: 0,33,,"IPV4"	33 indicates that request
"			service is not specified.
		^NDISEND:1,33	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	Report that the connection is not set up.
OK
AT^NDISSTATQRY?	Query the dial-up connection state.
^NDISSTATQRY: 1,,,IPV4	Report that the connection is set up.

OK

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	22
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