The Root store highlighted in this page is woefully outdated, however it seems that this is reality.  I need to talk to a program manager who provides the s/w portion for Lync handsets to people like Polycom as significant updates are required to the Lync system to allow it to work effectively with Lync Servers.  Please see this page as an example and note that I'm trying to also make contact through the Microsoft Root Program team.  - no luck so far.

http://technet.microsoft.com/en-us/library/gg398270(v=ocs.14).aspx

An update in April 2013 was made to replace the CyberTrust Root.  Were others updated?  http://support.microsoft.com/kb/2855339/en-us 

Kind Regards
 
Steve Roylance
 
GlobalSign
steve.roylance@globalsign.com
 
Springfield House, Sandling Road, Maidstone, Kent, ME14 2LP, UK.
Tel: +44 1622 766766  Fax: +44 1622 662255
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• Changed type Lisa.zhengMicrosoft contingent staff, Moderator Thursday, February 27, 2014 8:33 AM

Steve, Microsoft added a ton of certificate updates in the latest Lync Phone Edition firmware release (Jan 2014 / CU11 / .4420), and they have added incremental changes in past Cumulative Updates as well.

Unfortunately they have not been good about updating the TechNet page you are referring to.  I can confirm that the following GlobalSign Root certificate was updated in .4420.

Friendly Name       : GlobalSign Root CA
Thumbprint          : B1BC968BD4F49D622AA89A81F2150152A41D829C
Issued by           : CN=GlobalSign Root CA, OU=Root CA, O=GlobalSign nv-sa, C=BE
Valid From          : 9/1/1998
Valid To            : 1/28/2028
Signature Algorithm : sha1RSA
Key size            : 2048