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You can't play with the privacy setting from the server. as this is a Lync client based mechanism <br />
<br />
<a href="http://blogs.technet.com/b/seanearp/archive/2011/09/06/leave-me-alone-using-lync-to-not-communicate.aspx" rel="ugc">http://blogs.technet.com/b/seanearp/archive/2011/09/06/leave-me-alone-using-lync-to-not-communicate.aspx</a><br />
<br />
And this is for Skype for Business client<br />
<a href="https://support.office.com/en-us/article/Control-access-to-your-presence-information-in-Skype-for-Business-Lync-2fbfdcc5-d04b-49fe-ad90-264a42f7cce1" rel="ugc">https://support.office.com/en-us/article/Control-access-to-your-presence-information-in-Skype-for-Business-Lync-2fbfdcc5-d04b-49fe-ad90-264a42f7cce1</a>
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You can't play with the privacy setting from the server. as this is a Lync client based mechanism

http://blogs.technet.com/b/seanearp/archive/2011/09/06/leave-me-alone-using-lync-to-not-communicate.aspx [http://blogs.technet.com/b/seanearp/archive/2011/09/06/leave-me-alone-using-lync-to-not-communicate.aspx]

And this is for Skype for Business client
https://support.office.com/en-us/article/Control-access-to-your-presence-information-in-Skype-for-Business-Lync-2fbfdcc5-d04b-49fe-ad90-264a42f7cce1 [https://support.office.com/en-us/article/Control-access-to-your-presence-information-in-Skype-for-Business-Lync-2fbfdcc5-d04b-49fe-ad90-264a42f7cce1]

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It isn't stored on the server? I find that hard to believe.
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It isn't stored on the server? I find that hard to believe.

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And that will work with Skype for Business 2015 as well?
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And that will work with Skype for Business 2015 as well?

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I don't think so but you might give it a try on a lab environment ...
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I don't think so but you might give it a try on a lab environment ...

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Actually, I think it does, per this link:<br />
<br />
<a href="https://msdn.microsoft.com/en-us/office/mt124990.aspx?f=255&MSPPError=-2147217396" rel="ugc">https://msdn.microsoft.com/en-us/office/mt124990.aspx?f=255&MSPPError=-2147217396</a><br />
<br />
I'll give that a try.
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Actually, I think it does, per this link:

https://msdn.microsoft.com/en-us/office/mt124990.aspx?f=255&MSPPError=-2147217396 [https://msdn.microsoft.com/en-us/office/mt124990.aspx?f=255&MSPPError=-2147217396]

I'll give that a try.

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As an admin, is it possible to change another user's (or all users') privacy relationship(s) with another user (or all users)? In a large organization we need to be able to set certain rules about how they can/are set but so far I've been unable to determine how that would be done.
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As an admin, is it possible to change another user's (or all users') privacy relationship(s) with another user (or all users)? In a large organization we need to be able to set certain rules about how they can/are set but so far I've been unable to determine how that would be done.

Lync 2013 / Skype for Business - Globally Change All Privacy Relationships

Instant messaging (IM) is a type of online chat that offers real-time text transmission over the Internet. A LAN messenger operates in a similar way over a local area network. More advanced instant messaging can add file transfer, clickable hyperlinks, Voice over IP, or video chat. Non-IM types of chat include multicast transmission, usually referred to as "chat rooms". Depending on the IM protocol, the technical architecture can be peer-to-peer (direct point-to-point transmission) or client-server (a central server retransmits messages from the sender to the communication device).

Chat / IM

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

Telecommunication occurs when the exchange of information between two or more entities (communication) includes the use of technology. Communication technology uses channels to transmit information (as electrical signals), either over a physical medium (such as signal cables), or in the form of electromagnetic waves. The word is often used in its plural form, telecommunications, because it involves many different technologies.