Huawei MU609 Application Manual page 32

HUAWEI MU609 HSPA LGA Module
Application Guide
2. Terminating a data service connection from the UE: The TE sends an AT
command to the UE to pull down the DTR signal. After receiving the AT
command, the UE releases the connection to the network, pulls down the CD
signal, and returns NO CARRIER. As a result, the data service connection is
disconnected. This mode of disconnecting data service connections requires
an AT command interaction tool.
3. When disconnecting data service connections in Android RIL, the module must
kill pppd to disconnect PPP connections before using AT+CGACT=0 to
deactivate PDP contexts and release wireless link resources.
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
External Protocol Stack Application Scenarios
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