One way audio for a specific participant

Hi,
I have a problem implementing a lightweight feature in Jicofo. I appreciate any help.
The scenario is as follows:
I want to set up a one-way audio call for a specific participant (Assume that I have access to the participant object in Jicofo). I did the following:
1- commented the line:
contents.add(createVideoContent(options));
2- changed
content.setSenders(ContentPacketExtension.SendersEnum.both);
to
content.setSenders(ContentPacketExtension.SendersEnum.initiator);

But still, the participant can send audio.
I’m trying to limit the participant to send audio. I want him only to receive audio.
Does anybody have any idea?

Sorry, I had a bug in my code. Now it works. but there is a pitfall in client-side:
why
There are thousands of logs inside the browser of the participant which has a oneway audio session.
I think it’s dangerous.
These are the offer options:

<content creator='initiator' name='audio' senders='initiator'><transport xmlns='urn:xmpp:jingle:transports:ice-udp:1'><fingerprint xmlns='urn:xmpp:jingle:apps:dtls:0'/></transport><description xmlns='urn:xmpp:jingle:apps:rtp:1' media='audio' maxptime='60'><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='111' name='opus' clockrate='48000' channels='2'><parameter name='minptime' value='10'/><parameter name='useinbandfec' value='1'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='transport-cc'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='103' name='ISAC' clockrate='16000'/><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='104' name='ISAC' clockrate='32000'/><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='126' name='telephone-event' clockrate='8000'/><rtp-hdrext xmlns='urn:xmpp:jingle:apps:rtp:rtp-hdrext:0' id='1' uri='urn:ietf:params:rtp-hdrext:ssrc-audio-level'/><rtp-hdrext xmlns='urn:xmpp:jingle:apps:rtp:rtp-hdrext:0' id='5' uri='http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01'/></description></content>
<content creator='initiator' name='video' senders='initiator'><transport xmlns='urn:xmpp:jingle:transports:ice-udp:1'><fingerprint xmlns='urn:xmpp:jingle:apps:dtls:0'/></transport><description xmlns='urn:xmpp:jingle:apps:rtp:1' media='video'><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='100' name='VP8' clockrate='90000'><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='ccm' subtype='fir'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack' subtype='pli'/><parameter name='x-google-start-bitrate' value='800'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='transport-cc'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='107' name='H264' clockrate='90000'><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='ccm' subtype='fir'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack' subtype='pli'/><parameter name='x-google-start-bitrate' value='800'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='transport-cc'/><parameter name='profile-level-id' value='42e01f;level-asymmetry-allowed=1;packetization-mode=1;'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='101' name='VP9' clockrate='90000'><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='ccm' subtype='fir'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack' subtype='pli'/><parameter name='x-google-start-bitrate' value='800'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='transport-cc'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='96' name='rtx' clockrate='90000'><parameter name='apt' value='100'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='ccm' subtype='fir'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack'/><rtcp-fb xmlns='urn:xmpp:jingle:apps:rtp:rtcp-fb:0' type='nack' subtype='pli'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='97' name='rtx' clockrate='90000'><parameter name='apt' value='101'/></payload-type><payload-type xmlns='urn:xmpp:jingle:apps:rtp:1' id='99' name='rtx' clockrate='90000'><parameter name='apt' value='107'/></payload-type><rtp-hdrext xmlns='urn:xmpp:jingle:apps:rtp:rtp-hdrext:0' id='3' uri='http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time'/><rtp-hdrext xmlns='urn:xmpp:jingle:apps:rtp:rtp-hdrext:0' id='5' uri='http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01'/></description></content>
<content creator='initiator' name='data' senders='initiator'><transport xmlns='urn:xmpp:jingle:transports:ice-udp:1'><fingerprint xmlns='urn:xmpp:jingle:apps:dtls:0'/></transport><description xmlns='urn:xmpp:jingle:apps:rtp:1' media='application'/></content>

Note: the senders equals to initiator, not both.