Troubleshooting; Disconnecting Data Service Connections; Reference Process - Huawei MU609 Application Manual

HUAWEI MU609 HSPA LGA Module
Application Guide

4.4.2 Troubleshooting

Scenario
+++

4.5 Disconnecting Data Service Connections

4.5.1 Reference Process

Process 1:
Command
+++
ATH
OK
Process 2:
Command
AT+CGACT=0
OK
1.
Issue 02 (2013-09-18)
Possible Error Information
Failed to switch to command
mode.
Terminating a data service connection from the TE: the TE sends a PPP
Terminate packet to the UE to pull down the DTR signal. The UE disconnects
the PPP connection, releases the wireless link resource, pulls down the CD
signal, and returns NO CARRIER. As a result, the data service connection is
disconnected. This method of disconnecting data service connections is usually
implemented by the disconnection function of the TE's application.
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External Protocol Stack Application Scenarios
Solution
+++ must be consecutively
entered within 0.9s.
Description
Before this command is executed, the
+++ sequence must be sent to the data
service port. This command is used to
disconnect data service connections.
This command is usually used in
Windows.
Description
In Android RIL, after a PPP connection
is disconnected, this command is
executed to deactivate the PDP context
to release the data link and disconnect
the data services. The use of this
command is the same as that of ATH.
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