Lync duplicate contacts sync from outlook

Question

In my outlook 2010 under contacts --> Lync contacts showing duplicate contacts of each.
What is the purpose of Lync contacts in outlook. where does it sync with.
How to remove duplicate entries.
I am using Lycn 2013 client & Lync server 2010.

Answer 1

All you just need to do is 4 steps on the Lync server
1. Check what you have on -EnableExchangeContactSyc by doing c:\get-csuserclientpolicy. And make        is set
to false by doing Set-CsClientPolicy global
-EnableExchangeContactSync $False if you only
have one policy but if you have another group policy apart from the global e.g. Accounting and you want to apply it to the group. Do c:\Set-CsClientPolicy
-identity "accounting" -EnableExchangeContactSync $False
2. Do
C:\Update-Csuserdatabase (this update client database)
3. Do
C:\Update-CsAddressBook (this update client address book)
4. Do
C:\Invoke-CsManagmentStoreReplication (this replicate changes to all Lync servers)
Give it five minute and all should be fine but some users might need to exit from Lync and sign in again to see changes.
-Abu Lasisi