Lync 2013. There was a problem connecting with the Exchange. Unable to load the magazine discussions.

Question

Lync 2013. There was a problem connecting with the Exchange. Unable to load the magazine discussions.
Installed Lync Server Standart 2013, client PC MS Office 2013.
As the mail system - Lotus Notes Domino Server and Lotus Notes client, respectively.
Exchange is not installed at all.
question:
1 What is the message: "There was a problem connecting with Exchange. Unable to load the magazine discussions." and how it is fraught?
2 How can I fix this message? Cleaning the C: \ Users \% UserName% \ AppData \ Local \ Microsoft \ Office \ 15.0 \ Lync \ does not help
3 What are the disadvantages when using Lync Server Standart 2013 without Exchange? In principle, I put for Lync Exchange?
4 What are the advantages when using Lync Server Standart 2013 with Exchange?
5 Is it possible to work simultaneously Lync Server Standart 2013 + Exchange + Lotus Notes
Thank you.

Answer 1

1) That sounds like a strange translation.  But basically, it wants to connect to Exchange and it's complaining. 
2) You can attempt to go to Tools->Options->Personal and set Personal Information Manager to None, and in Lync Management Shell run set-csclientpolicy
http://technet.microsoft.com/en-us/library/gg398300.aspx with the following options:
DisableCalendarPresence $True
DisableEmailComparisonCheck $True
EnableExchangeContactSync $False
There may be more, I've never tried to completely disable Exchange features from Lync.
3) No conferencing plugin for meeting invites, no automatic presence management based upon your calendar, no searching your Outlook contacts for new contacts, no voicemail, no conversation history,no unified contact store, and more:
http://technet.microsoft.com/en-us/library/jj688098.aspx
4) This is just #3 in reverse :)
5) Depends on your goals, but the experience wouldn't be great.  You'd want to keep your contacts and calendar in Exchange and your email in Notes.  It would be confusing to your users. 
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