EG915U Echo Cancellation

IoT Modules LTE Standard Module
1

When we switch the EG915U to loudspeaker mode with:

AT+QAUDMOD=2

…it switches the audio output to a non-existent loudspeaker output on the module. If we return it to the earpiece output (which does exist on the module) the sound works but there is no echo cancellation and this affects our application. There are no echo issues with our product using the EG91 as the enclosure is well designed for this.

I tried to set the AT+QAPS parameters as per the EG91 but the command doesn’t exist. Is there a similar echo cancellation command in the EG915U?

Thanks.

Michael

4

The only command available is the AT+QAUDCFG with complex options we cannot set.

Is there a firmware release that has AT+QEEC so we can copy from loudspeaker settings to the earpiece settings?