Do you want to publish Lync 2013 web services using something other than TMG or UAG now that they are getting closer to the end? Doug Deitterick has a nice how to guide. You will find this guide on TechNet. 
Take a look at  : http://blogs.technet.com/b/dodeitte/archive/2013/10/29/how-to-publish-lync-server-2013-web-services-with-windows-server-2012-r2-web-application-proxy.aspx