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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt'>Dear SIP Forum Members:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>If you are an implementer of STIR/SHAKEN and other SIP-based services and applications, and are interested in performing interoperability tests with other solutions providers, then SIPit 33 is the event for you.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><a href="https://www.sipforum.org/news-events/test-event-wg-overview-and-charter-sipit/upcoming-sipit-events/">SIPit 33</a>, the 33<sup>rd</sup> installment of the SIP Forum’s SIP Interoperability Testing Event, is coming up fast in three weeks. The event is scheduled the week of December 13-17, 2021.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Due to the ongoing pandemic, the SIP Forum will be holding SIPit 33 virtually, with remote connectivity to the testing environment, and will hosted by the <a href="https://www.iol.unh.edu/"><span style='color:windowtext'>University of New Hampshire Interoperability Laboratory</span></a> (UNH-IOL) located in Durham, New Hampshire. Meetings associated with the event will be held using a variety of video-conferencing services to facilitate discussion, brainstorming and debugging amongst the event participants.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Organized by the SIP Forum, the SIPit events are the world’s premier interoperability testing events for SIP, bringing together leading SIP application developers, service providers and IP communications equipment manufacturers to ensure their SIP implementations work seamlessly together in an IP network testing environment.<span style='color:#1F497D'><o:p></o:p></span></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>The purpose of SIPit is to test for interoperability of SIP implementations, to determine the source of incompatibilities, inform new standards work, and drive refinement of the specifications. <span style='color:#1F497D'><o:p></o:p></span></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SIPit is organized by the SIP Forum’s Test Event Working Group (TEWG), co-chaired by Robert Sparks of Nostrum, and Chris Wendt, co-chair of the joint SIP Forum/ATIS IP-NNI Task Force. To date, the SIP Forum has hosted 32 SIPit events around the globe. The previous event, SIPit 32, was also hosted by the University of New Hampshire Interoperability Laboratory.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><u><span style='font-size:12.0pt'>SIPit 33 FOCUS<o:p></o:p></span></u></b></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>The main focus for this upcoming SIPit 33 event will be on Secure Telephone Identity (STI) related technologies.<span style='color:#1F497D'> </span>This includes protocols and industry initiated efforts around STIR/SHAKEN in the U.S. as well as some similar and related efforts happening internationally. The event is designed for implementers that wish to test their devices and cloud and premise-based SIP services that implement the protocols related to STI.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SIPit 33 tests can include various protocol-related Interop including:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Rich Call Data<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Certificate Delegation<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Diversion<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>SHAKEN<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>RPH/911<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>In addition, SIPit 33<span style='color:#1F497D'> </span>participants are welcome to also demonstrate and/or brainstorm topics such as:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Display<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Entity and TN Vetting<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Certificates/ACME<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><span style='font-size:12.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:12.0pt'>Error Handling<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><b><u><span style='font-size:12.0pt'>FOR MORE INFORMATION AND TO REGISTER<o:p></o:p></span></u></b></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>For more information about SIPit 33 please visit the <a href="https://www.sipforum.org/news-events/test-event-wg-overview-and-charter-sipit/upcoming-sipit-events/" target="_blank">event’s webpage</a>, or send an email to <a href="mailto:sipit-info@sipforum.org">sipit-info@sipforum.org</a>.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SIPit 33 registration is open, and the individual participation fee has been set at $150 USD. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>To register, please visit <a href="https://learnforlife.unh.edu/portal/events/reg/participantTypeSelection.do?method=load&entityId=153319111" target="_blank">https://learnforlife.unh.edu/portal/events/reg/participantTypeSelection.do?method=load&entityId=153319111</a>.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Once your registration is approved, you will be provided a login to the SIPit 33 wiki, where additional information about the event can be found and where participants and associated teams can meet to arrange joint tests. You will also be subscribed to the SIPit mailing list to keep you informed about the event. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>For more information about past SIPit events, please visit <a href="http://www.sipit.net" target="_blank">www.sipit.net</a>. In addition, summaries of the aspects of the protocols tested at past SIPit events are available at <a href="http://www.sipit.net/SIPitSummaries" target="_blank">www.sipit.net/SIPitSummaries</a>.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><b><u><span style='font-size:12.0pt'>SIPit 33 SPONSOR<o:p></o:p></span></u></b></p><p class=MsoNormal><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:12.0pt'>The SIP Forum is proud to have the generous support of<b> <a href="http://www.stirshaken.neustar/">Neustar</a> </b>as a SIPit 33 sponsor.<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><a href="http://www.stirshaken.neustar/"><b><span style='font-size:12.0pt;color:windowtext;text-decoration:none'><img border=0 width=255 height=51 id="Picture_x0020_0" src="cid:image003.jpg@01D7DF9D.C3EDF390" alt="NSR Digital Logo.jpg"></span></b></a><b><span style='font-size:12.0pt'><o:p></o:p></span></b></p><p><span style='font-family:"Calibri","sans-serif"'>Neustar is an information services and technology company and a leader in identity resolution providing the data and technology that enables trusted connections between companies and people at the moments that matter most. Neustar offers industry-leading solutions in Marketing, Risk, Communications, Security and Registry that responsibly connect data on people, devices and locations, continuously corroborated through billions of transactions. Neustar serves more than 8,000 clients worldwide, including 60 of the Fortune 100 , and over 800 communication service providers.<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif"'>An industry leader in Caller Identification solutions, Neustar is a co-author of STIR standards, key contributor to the SHAKEN framework, and the exclusive operator of the <a href="https://urldefense.com/v3/__https:/cts.businesswire.com/ct/CT?id=smartlink&url=https*3A*2F*2Fwww.home.neustar*2Fatis-testbed*2Findex.php&esheet=52143291&newsitemid=20191210005405&lan=en-US&anchor=ATIS*Robocalling*Testbed&index=5&md5=3410606cf1b47c5ead9d2b249d522525__;JSUlJSUrKw!!N14HnBHF!tmtrrkQrzwQ1pGiViXhFZ8GQ_d3cJT9g8grQ_iL-UlTyTrTuker51yMzIYprh2ecxsY$" target="_blank">ATIS Robocalling Testbed</a> which conducts interoperability testing of real-world STIR/SHAKEN implementations against Neustar’s reference implementation. Learn more at <a href="http://www.stirshaken.neustar" target="_blank">www.stirshaken.neustar</a><o:p></o:p></span></p><p class=MsoNormal><b><u><span style='font-size:12.0pt'>SPONSORSHIP INFORMATION<o:p></o:p></span></u></b></p><p class=MsoNormal><b><span style='font-size:12.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:12.0pt'>For companies interested in supporting SIPit 33 through their sponsorship of the event, please contact Marc Robins at <a href="mailto:marc.robins@sipforum.org">marc.robins@sipforum.org</a> to receive information about sponsorship benefits and costs.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>All best,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Marc<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>*************************<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Marc Robins<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>President and Managing Director<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SIPNOC and STIR/SHAKEN SUMMIT Program Chair<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Director, SIPconnect Certification Testing Program<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SIP Forum LLC<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><a href="https://www.sipforum.org/"><span style='color:windowtext'>https://www.sipforum.org</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Mobile: +1-203-829-6307<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>SkypeMe! marcrobins<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>