The EC25EUGAR08A01M4G module is connected to the asterisk chan_quectel. The audio is through the UAC. I can hear the other party, but they can’t hear me. After a while (during the call), an error appears:
NOTICE[716]: res_pjsip_sdp_rtp.c:146 rtp_check_timeout: Disconnecting channel ‘PJSIP/505-00000000’ for lack of audio RTP activity in 31 seconds
I tried switching the audio through the USB port, but the result was the same.