code: public static void rejectMediaField(SessionDescription answer, MediaDescriptionField media) {
  		MediaDescriptionField rejected = new MediaDescriptionField();
  		rejected.setMedia(media.getMedia());
  		rejected.setPort(0);
  		rejected.setProtocol(media.getProtocol());
  		rejected.setPayloadTypes(media.getPayloadTypes());
  		
  		rejected.setSession(answer);
  		answer.addMediaDescription(rejected);
  	}
docs: Rejects a media description from an SDP offer.
  
  @param answer
  The SDP answer to include the rejected media
  @param media
  The offered media description to be rejected