There are few important considerations which you have to make sure before planning of your disaster recovery setup. In paired pool configuration, you can have both sites active but make sure maximum number of users should be based on single pool so that at the time of site failure another site can accommodate all the user without any performance issue. Pool pairing option can be configured between two different Lync/Skype4B sites. Lync Server 2013 and Skype for Business Server 2015 provides pool pairing option to configure disaster recovery. For more details and in-depth information you can search role specific blog posts here and if don’t find any information please let me know, I’ll try to help you out. For example, if you collocate Mediation server with Front End servers then concurrent call reduces. * shows that these are technical possibilities and support matrix but doesn’t guarantee any performance. The above comparison shows very high level difference but these are core differentiation points between standard and enterprise edition. Let me explain the difference through comparison. I would say end user can’t recognize the version of Lync/Skype for Business. Both the editions offer same features and functionalities. Lync/Skype for Business server comes in two different editions i.e. J I hope it will motivate others as well to ask any thing on and I’ll try my best to help each one of you. This is an on-demand article, I am writing it because one of the follower was asking about it and definitely it will help others as well.

Upgrade lync 2013 to skype for business