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HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
Call Control Commands
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
73
7.2 H–Command for Disconnecting the Data Service
7.2.1 Syntax
Command
Possible Response(s)
H[<value>]
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
7.2.2 Interface Description
This command disconnects the data service connection with a remote subscriber. To
use this command on the current port, you must enter +++ to change the current port
from the data mode to the command mode.
If this command cannot be used, you can interrupt a data connection by changing DTR signals
from the ON state to the OFF state. For details, see the &D command.
7.2.3 Parameter Description
<value>: An integer. The connection is disconnected and "OK" is returned only when
the value is 0. (The connection cannot be disconnected when the value is not 0, and
the response result is "ERROR".) ATH is equivalent to ATH0.
7.3 +CDV–Command for Originating a Voice Call
7.3.1 Syntax
Command
Possible Response(s)
+CDV<dial_string>
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR:<err><CR><LF>
7.3.2 Interface Description
This command is used by the TE to originate a voice call to the network through the
MT.