HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
Call Control Commands
Issue 04 (2013-01-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
139
9.12.3
Defined Values
<n>: 0
–255
0: Disable the function of AUTOANSWER (default value).
1
–255: MS will answer the call automatically after Ring n times.
9.13 ^DTMF–Send DTMF Key Value
9.13.1
Command Syntax
Command
Possible response(s)
^DTMF=<call_id>,<dtmf_digit>
<CR><LF>OK<CR><LF>
<CR><LF>ERROR<CR><LF>
<CR><LF>+CME ERROR: <err><CR><LF>
9.13.2
Description
The EXECUTION command is used to send DTMF key value to network during voice
call.
9.13.3
Defined Values
<call_id>: the ID of the current call.
1
–9
<dtmf_digit>: DTMF key value. It just only includes 0
–9 and *, #, every time only one
character is supported.
Note:
The interval of two AT^DTMF commands must be more than 3.33 ms.
9.14 ^ORIG–Indicate Call Origination
9.14.1
Command Syntax
Command
Possible response(s)
<CR><LF>^ORIG:<call_id>,<call_type><CR><LF>