[MS-ASCNTC]: Exchange ActiveSync: Contact Class Protocol https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 Specifies the Exchange ActiveSync: Contact Class Protocol, which is used for the interchange of contact data. Major Update for [MS-ASCNTC] (Version 20.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 20.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC].pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-220429.docx">DOCX</a></li></ul> Fri, 29 Apr 2022 MS-ASCNTC-20220429 Minor Update for [MS-ASCNTC] (Version 19.1) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 19.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-181211.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-181211.docx">DOCX</a></li></ul> Tue, 11 Dec 2018 MS-ASCNTC-20181211 Major Update for [MS-ASCNTC] (Version 19.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 19.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-181001.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-ASCNTC-20181001 Major Update for [MS-ASCNTC] (Version 18.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 18.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-180724.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-ASCNTC-20180724 No Update for [MS-ASCNTC] (Version 17.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 17.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-170418.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-170418.docx">DOCX</a></li></ul> Tue, 18 Apr 2017 MS-ASCNTC-20170418 Major Update for [MS-ASCNTC] (Version 17.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 17.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-170228.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-170228.docx">DOCX</a></li></ul> Tue, 28 Feb 2017 MS-ASCNTC-20170228 Major Update for [MS-ASCNTC] (Version 16.0) https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-ASCNTC/a4593b9d-d9af-4d27-bc5c-67c4c1b98d54 <b>Protocol Revision:</b> 16.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-160609.pdf">PDF</a></li><li><a href="https://interoperability.blob.core.windows.net/files/MS-ASCNTC/[MS-ASCNTC]-160609.docx">DOCX</a></li></ul> Thu, 09 Jun 2016 MS-ASCNTC-20160609