I used wav 8kHz (Mono, GSM 6.10) to use AT+QPSND and get CME ERROR 4300. What should I do?
Thanks in advance.
Hi,
4300 error means the format is wrong. please check the file format once.
please convert your file into below format using any audio tool/online sites
attached Audio application note FYR.
Regards
Rahul mahakalkar
Quectel_GSM_Audio_Player_Application_Note_V3.2.pdf (854.9 KB)