Hi kentavr, What's the version of ADF and voip you test? There is a AEC function added in voip example two months ago. I do not sure if this is the problem in my ESP32-Lyrat board. Acoustic Echo Cancellation (AEC) : Software AEC only support MINI board with our algorithm stream Hardware AEC You can ...

Hi, I attached two ESP32 logs, one is working with Android and another is NG without voice. The NG log lacks "SIP_RTP: send task, remote addr=192.168.5.152" in the line 276. SIP/2.0 486 Busy Here Via: SIP/2.0/UDP 192.168.5.152:5060;branch=z9hG4bK7fb44041;rport Contact: <sip:200@192.168.5.10:19092> F...

Yes, it should be work between two ESP32, but fail now. If I use voip example from ADF, it also failed with Android. I use g711enc_pipeline_open() and g711dec_pipeline_open() from OLIMEX sip_phone_example project to replace recorder_pipeline_open() and player_pipeline_open(), it works with Android, ...

ADF V2.2. Have Asterisk working with one ESP32 and Android phone. But there is no sound with ESP32 to ESP32, any idea?