Lync 2013 standard deployment: Exchange 2010 Sharepoint 2010 and outlook 2007 collaboration

HI
I have Exchange 2010 and sharepoint 2010 with all our user using outlook 2007. what options do I have for collaborations between these systems if I was to install Lync 2013. I have seen posts that mention that you cannot use outlook 2007 and lync 2013 and
that you would be better off installing the lync 2010 client?
1. would we be covered from a licensing point of view if we had bought lync 2013 cals but install the lync 2010 software on desktops?
2. what Cals do we require for presence to be available in SharePoint we currently have standard sharepoint cals?
3. what new features will we loose if we install 2010 lync software.
4. if our mobile users use the 2013 lync software will these be able to communicate with the 2010 users?
thanks
J

Hi,
If you use Lync 2013 client with Outlook, multiple functions will not be achieved, such as: customize Outlook meeting invitations (add logo, help URL, disclaimer, footer text), in Outlook, configure meeting option to mute attendee audio and video by default,
presence status in the Microsoft Outlook To and Cc fields, and so on. As Lync 2013 is the part of Office 2013, the best choice is using Outlook 2013.
More details:
https://technet.microsoft.com/en-us/library/gg412817.aspx
For the CAL requirement, you can refer to following link:
Lync Licensing Guide
You can refer to the link below of “What’s new for clients in Lync Server 2013” to understand the new features for Lync 2013:
https://technet.microsoft.com/en-us/library/jj204933.aspx
If you use Lync 2013 mobile clients, you can communicate with 2010 users with no possible.
Best Regards,
Eason Huang
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Eason Huang
TechNet Community Support

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