Audio File Playback; Network Status Indicator - u-blox LISA-C2 Series System Integration Manual

The use of hybrid positioning requires a connection via the DDC (I2C) bus between the LISA-C cellular module
and the u blox GNSS receiver (see section 1.10).
Refer to GNSS Implementation Application Note [18] for the complete description of the feature.
u-blox is extremely mindful of user privacy. When a position is sent to the CellLocate
unable to track a specific celluar module.

3.8 Audio File Playback

Audio file playback from locally stored AMR audio file feature is supported only by LISA-C200 from version
04S / 24S onwards
Audio file playback is stopped and terminated if there is a incoming or terminated voice call during playback
When transferring a file using +UDWNFILE into the LISA-C200 file system a slower baud than 115200
KB/sec is recommended
Total AMR audio files should not exceed 400KB to avoid memory issues
LISA-C200 modules permits audio files in AMR format to be stored and played back using the +UPLAYFILE
command. During playback if there is an incoming voice call or if a call is terminated during playback, then the
playback instance will stop and will not resume.
Playback can be initiated during an active voice call.
If the playback is prematurely terminated, a URC is generated to reflect the incomplete playback. In such a case,
one option is to configure the audio file to be played multiple times and / or have the host application monitor
the URC and replay the audio file as needed. For URC message details, see u-blox C2 series AT Commands
Manual [3].
To load and delete the AMR files from memory:
•
+UDWNFILE command to load the AMR file into the module in binary mode
•
+UDELFILE command to delete the AMR file
For more details, see u-blox C2 series AT Commands Manual [3].

3.9 Network Status Indicator

This feature is supported only by LISA-C200 from version 04S / 24S onwards.
The GPIO1, GPIO2, GPIO3, GPIO4 or GPIO5 alternatively from their default settings, can be configured to
indicate network status (i.e. no service, registered home network, registered visitor network, voice or data call
session), by means of the AT+UGPIOC command. For further details, see u-blox C2 series AT Commands Manual
[3].
The different Network Status Indicator states are defined as:
UBX-13000620 - R21
LISA-C2 series and FW75-C200 - System Integration Manual
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