[MS-SIPAPP]: Session Initiation Protocol (SIP) Application Protocol https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 Specifies the Session Initiation Protocol (SIP) Application Protocol, which is a collection of independent proprietary client-server protocols that are used to provide enhanced functionality to Session Initiation Protocol (SIP)-based communication systems. Major Update for [MS-SIPAPP] (Version 6.0) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 6.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP].pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-210817.docx">DOCX</a></li></ul> Tue, 17 Aug 2021 MS-SIPAPP-20210817 Major Update for [MS-SIPAPP] (Version 5.0) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 5.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180828.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180828.docx">DOCX</a></li></ul> Tue, 28 Aug 2018 MS-SIPAPP-20180828 Major Update for [MS-SIPAPP] (Version 4.0) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 4.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180724.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-SIPAPP-20180724 Major Update for [MS-SIPAPP] (Version 3.0) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 3.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180427.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-180427.docx">DOCX</a></li></ul> Fri, 27 Apr 2018 MS-SIPAPP-20180427 No Update for [MS-SIPAPP] (Version 2.1) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 2.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-161017.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-161017.docx">DOCX</a></li></ul> Mon, 17 Oct 2016 MS-SIPAPP-20161017 No Update for [MS-SIPAPP] (Version 2.1) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 2.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-160914.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-160914.docx">DOCX</a></li></ul> Wed, 14 Sep 2016 MS-SIPAPP-20160914 No Update for [MS-SIPAPP] (Version 2.1) https://docs.microsoft.com/en-us/openspecs/office_protocols/MS-SIPAPP/2cc5f99e-7190-4672-bb24-6dc9c6347019 <b>Protocol Revision:</b> 2.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-160715.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-SIPAPP/[MS-SIPAPP]-160715.docx">DOCX</a></li></ul> Fri, 15 Jul 2016 MS-SIPAPP-20160715