Problems with encrypted audio stream

Hello! I’m using Duobango SIPML5. But when call is processed this errors appears:

[Apr 17 11:01:05] WARNING[24230][C-00000014]: chan_sip.c:10842 process_sdp: Matched device setup to use SRTP, but request was not!
NOTICE[24674][C-00000013]: chan_sip.c:10386 process_sdp: Received SAVPF profle in audio offer but AVPF is not enabled, enabling: audio 58823 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 126
[Apr 17 10:56:26] WARNING[24674][C-00000013]: chan_sip.c:10785 process_sdp: Rejecting secure audio stream without encryption details: audio 58823 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 126
Can you help me, please? Thank you in advance!

You need to use DTLS/SRTP with doubango means that you will need to use WSS and a certificate in your webpage, google a bit there is a lot information about that also in this forum.

We already using it: WSS connection and secure sertificate. Maybe something else?

You’ll need to provide the configuration and also confirm you’ve got pjproject installed as it is used for ICE/STUN/TURN.