I compiled and ran the voiceCallApp program available in the Legato 76xx package. I built the app with mysys -t wp76xx voiceCallApp.sdef and uploaded the voiceCallApp.wp76xx.update app onto the Mango Red board. I could run the program successfully and make a voice call. The other party is able to hear my voice clearly but I was not hear back what they are speaking. I am using the MAIRDI headset with the mango red board. The have attached the logs.VoiceCallApp_20201103_130153.rtf (52.7 KB)
I don’t see problem to hear voice on mangoh board when voice call.
How about using at!avaudio to check if you can do audio playback first?
root@swi-mdm9x28-wp:~# microcom /dev/ttyAT
Manufacturer: Sierra Wireless, Incorporated
Revision: SWI9X07Y_02.28.03.05 000000 jenkins 2019/07/08 11:04:16
IMEI SV: 6
[ 1674.996800] afe_send_custom_topology_block: AFE SVC cal has invalid size: 0!
[ 1675.002968] afe_send_custom_topology: No cal sent for cal_index 7! ret -22
[ 1675.009736] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4096
[ 1675.039965] q6asm_callback: cmd = 0x10da1 returned error = 0x3
[ 1675.044876] q6asm_send_cal: DSP returned error audio audstrm cal send
[ 1675.061278] adm_callback: cmd = 0x10328 returned error = 0x3
[ 1675.065998] send_adm_cal_block: DSP returned error[ADSP_EUNSUPPORTED]
[ 1681.114444] BUG: sleeping function called from invalid context at /usr/src/kernel/kernel/locking/mutex.c:97
[ 1681.123171] in_atomic(): 0, irqs_disabled(): 128, pid: 4105, name: aplay