Audio Codec Adapter Setup for Cinterion
®
Modules
3.1 Assembly with DSB75 and AH6-DSB75 Adapter
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audio_codec_adapter_setup_v04 2019-10-16
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3.1.2 Operation
Having completed the Audio Codec Adapter assembly and configuration described in the pre-
vious sections, the Audio Codec Adapter can be employed. This section describes the various
possible ways to operate and test the Audio Codec Adapter.
3.1.2.1 Voice Calls
The Audio Codec Adapter processes outgoing and incoming voice calls. Before setting up a
voice call, please ensure that the following prerequisites are completed: SIM pin is entered,
module has the appropriate functionality level, module is attached to network, and the module
is registered in IMS (for VoLTE).
Now, the following AT commands can be entered to process voice calls:
Outgoing calls can be started by:
ATD Mobile originated call to specified number
Incoming calls can be connected :
ATA Connect to incoming call
Call status can be verified by
AT+CLCC List of current calls
Calls can be terminated by the following AT command for the module:
AT+CHUP Hang up call
Please refer to your product specific AT Command Set ([1]) for details on the AT commands to
complete the prerequisites and to process a voice call. Not all commands may be available for
all modules.
3.1.2.2 Module Generated Tones
Some AT commands - not all of them necessarily available for every module - can be used to
generate tones that can be processed by the Audio Codec Adapter:
AT^SNFG Generate Tone
AT^SRTC Ring Tone Configuration
AT+VTS DTMF and Tone Generation
Please refer to your product specific AT Command Set ([1]) for details on these AT commands
to generate tones. Not all commands may be available for all modules.