Rejecting secure video stream without encryption

Hi,

I have a problem when I make a video call between JsSIP (tryit.jssip.net) and Linphone application android. I obtain “Incompatible SDP” on the website, error “488 Not acceptable here” on the console and “chan_sip.c:10508 process_sdp: Rejecting secure video stream without encryption details” on the asterisk console.

Do you know how can I fix it?