https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c Specifies the Presence Protocol, which defines presence-related extensions to Session Initiation Protocol (SIP). This protocol describes how SIP is used by terminals to establish, modify, and terminate multimedia sessions or calls. https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 11.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES].pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-210817.docx">DOCX</a></li></ul> Tue, 17 Aug 2021 MS-PRES-20210817 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 10.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-190618.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-190618.docx">DOCX</a></li></ul> Tue, 18 Jun 2019 MS-PRES-20190618 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 10.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180828.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180828.docx">DOCX</a></li></ul> Tue, 28 Aug 2018 MS-PRES-20180828 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 9.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180724.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-PRES-20180724 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 8.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180427.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-180427.docx">DOCX</a></li></ul> Fri, 27 Apr 2018 MS-PRES-20180427 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 7.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-170620.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-170620.docx">DOCX</a></li></ul> Tue, 20 Jun 2017 MS-PRES-20170620 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 7.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-160914.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-160914.docx">DOCX</a></li></ul> Wed, 14 Sep 2016 MS-PRES-20160914 https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-PRES/741d682d-590b-4600-916e-8deeee426a5c <b>Protocol Revision:</b> 7.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-160715.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-PRES/[MS-PRES]-160715.docx">DOCX</a></li></ul> Fri, 15 Jul 2016 MS-PRES-20160715