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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.
74
7.3.3 Parameter Description
<dial_string>: Specifies the called number, consisting of ASCII characters. Allowed
characters include only 0–9, *, #, and +. The + symbol can only be placed at the
beginning of a number. The maximum length of a number cannot exceed 65.
7.3.4 Example
AT+CDV13372311111
OK
^ORIG:0,0
7.4 +CHV–Command for Disconnecting a Voice Call
7.4.1 Syntax
Command
Possible Response(s)
+CHV[<value>]
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>+CME ERROR:<err><CR><LF>
7.4.2 Interface Description
This command disconnects a voice call.
7.4.3 Parameter Description
<value>: An integer. The connection is interrupted and "OK" is returned only when
the value is 0. (The connection cannot be interrupted when the value is not 0, and the
response result is "ERROR".) If there is no voice connection, "OK" is returned.
In case of using the command without <value>, <value> is set to 0.
7.5 A–Command for Answering a Call A
7.5.1 Syntax
Command
Possible Response(s)
A
<CR><LF>OK<CR><LF>