Huawei MC509 用户手册
HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
AT Command Interface Specification
Call Control Commands
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
75
7.5.2 Interface Description
When a call is originated to the MT, the TE uses this command to notify the MT to
answer the call. If there is an incoming call from the third party at this time, this
command can also be used to answer the incoming call. If there is no incoming call,
"NO CARRIER" is returned.
answer the call. If there is an incoming call from the third party at this time, this
command can also be used to answer the incoming call. If there is no incoming call,
"NO CARRIER" is returned.
7.6 RING–Command for Indicating a Call
7.6.1 Syntax
Command
Possible Response(s)
RING
7.6.2 Interface Description
When a call is originated to the MT, the MT periodically (T is about 5s) reports the
indication to the TE.
indication to the TE.
7.7 S0–Command for Setting Automatic Answer
7.7.1 Syntax
Command
Possible Response(s)
S0=<value>
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
S0?
<CR><LF><value><CR><LF>
<CR><LF>OK<CR><LF>
7.7.2 Interface Description
This command sets the automatic answer function. After the automatic answer
function is enabled, the MT starts automatic answer when there is a new incoming
call.
function is enabled, the MT starts automatic answer when there is a new incoming
call.
7.7.3 Parameter Description
<value>:
0: Automatic answer is disabled (default value after startup).