Huawei MU609 - Voice Call Initialization; Reference Process; Troubleshooting; Voice Call Handling

HUAWEI MU609 HSPA LGA Module
Application Guide
Voice and Supplementary Service Application
Scenarios
Issue 02 (2013-09-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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6.2 Voice Call Initialization
6.2.1 Reference Process
Command
Description
ATS0=5
Set the module to automatically answer a call when the
module receives five Ring indications.
OK
ATS0?
005
OK
AT+CMUT=1
Mute the microphone during a call.
OK
6.2.2 Troubleshooting
Scenario
Possible Error
Information
Solution
ATS0=<value>
ERROR
The specified value exceeds the
value range 0–255.
AT+CMUT=<value>
ERROR
This command can be executed
only during an ongoing call.
6.3 Voice Call Handling
6.3.1 Reference Process
Command
Description
ATD13912345678;
User 1 makes a voice call to 13912345678.
OK
^ORIG: 1,0
^CONF: 1
RING
User 1 presents the ^ORIG indication.
User 2 receives the indication.
ATA
User 2 answers the call.