code: @Override
  	public void sendContactRequest(ContactRequest request) {
  		Utils.logCall(TAG, "sendContactRequest");
  		mSpf.getSecurityMonitor().getPersonRegistry().onFriendShipMessageReceived(request);
  	}
docs: /*
  (non-Javadoc)
  
  @see
  it.polimi.spf.framework.proximity.ProximityResponder#sendContactRequest
  (it.polimi.spf.framework.security.FriendshipMessage)