LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 7 / 231
12.6. AT+QAUDMOD Set Audio Mode ...................................................................................... 192
12.7. AT+QDAI Digital Audio Interface Configuration ................................................................ 193
12.8. AT+QEEC Set Echo Cancellation Parameters ................................................................. 195
12.9. AT+QSIDET Set the Side Tone Gain in Current Mode ..................................................... 196
12.10. AT+QMIC Set Uplink Gains of MIC .................................................................................. 197
12.11. AT+QRXGAIN Set Downlink Gains of RX ........................................................................ 198
12.12. AT+QIIC IIC Read & Write ................................................................................................ 199
12.13. AT+QTONEDET Enable/Disable DTMF Detection ......................................................... 200
12.14. AT+QLDTMF Play Local DTMF ........................................................................................ 201
12.15. AT+QLTONE Play a Local Customized Tone .................................................................... 202
13 Hardware Related Commands ..................................................................................................... 204
13.1. AT+QPOWD Power off ..................................................................................................... 204
13.2. AT+CCLK Clock ............................................................................................................... 204
13.3. AT+CBC Battery Charge .................................................................................................. 205
13.4. AT+QADC Read ADC Value ............................................................................................. 206
13.5. AT+QSCLK Enable/Disable Entering into Sleep Mode ..................................................... 207
14 Appendix ........................................................................................................................................ 208
14.1. References .......................................................................................................................... 208
14.2. Factory Default Settings Restorable with AT&F .................................................................. 209
14.3. AT Command Settings Storable with AT&W ......................................................................... 211
14.4. AT Command Settings Storable with ATZ............................................................................ 212
14.5. Summary of CME ERROR Codes ...................................................................................... 213
14.6. Summary of CMS ERROR Codes ...................................................................................... 215
14.7. Summary of URC ................................................................................................................ 216
14.8. SMS Character Sets Conversions....................................................................................... 219
14.9. Release Cause Text List of AT+CEER ................................................................................ 225
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