HUAWEI MU609 HSPA LGA Module
Application Guide
Internal Protocol Stack Application Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
34
5.1.2
Troubleshooting
Scenario
Possible Error
Information
Solution
AT^IPINIT?
^IPINIT: 0
OK
Initialization has not been performed.
Initialize the internal protocol stack and
query again.
AT^IPINIT="123
4","card", "card"
+CME ERROR:
Normal error
Initialization failed.
1. Check that the current network signal
strength is good and the parameters are
set correctly.
2. Ensure that no IP stack termination
command has been executed.
AT^IPINIT="123
4","card", "card"
+CME ERROR: The
link has been
established already
AT^IPINIT?
queries whether the internal
protocol stack has been initialized. If the
internal protocol stack has been
initialized, it does not need to be
initialized again. If it has not been
initialized, there are ongoing dial-up
services. Hang up the dial-up services
and re-send
^IPINIT
to start initialization.
5.2 Creating a Listen Server
5.2.1
Reference Process
Command
Description
AT^IPINIT="1234","card","card"
Initialize the internal protocol stack.
OK
AT^IPLISTEN="TCP",5000
Create a TCP server whose listen port
number is 5000 (users can specify this
number as required). For the method
to create UDP servers, refer to the AT
command document.
OK
AT^IPLISTEN?
Query the information about the server
that has been created.
^IPLISTEN: "TCP",5000,5
OK
