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Robert Sparks

Robert Sparks is a member of the Tools Development team, and is the Tools Project Manager for the IETF LLC. He is a co-chair of the STIR working group, and is a past-chair of the SIMPLE and GEOPRIV working groups. Robert was on the Internet Architecture board 2015-2019, and served as the program lead for the RFC Editor program, and as the IAB shepherd for the liaison relationship with 3GPP. Robert was a member of the RFC Series Oversight Committee from 2014-2019. Robert was an Area Director for the Real-time Applications and Infrastructure area from 2009-2013. He is a co-author of the core SIP specification and several of its updates and extensions, and has focused on improving the level of interoperability of SIP implementations by coordinating the SIPit interoperability events. He is also an active open source contributor. Robert served as a Senior Principal Member of Technical Staff at Oracle, Principal Engineer at Tekelec, VP of Research and Development at Estacado Systems, CTO at Xten Networks (now CounterPath), and has held management and research positions at dynamicsoft, Lucent, Worldcom and Texas A&M University. Robert has a BSc in Computer Science and a MSc in Mathematics from Texas A&M University.


Role Group Email
Chair The Tools Team (tools)
Chair Secure Telephone Identity Revisited (stir)
Delegate IETF (ietf)
Lead Maintainer The Tools Team (tools)
Liaison Contact Secure Telephone Identity Revisited (stir)
Member IETF LLC employees (llc-staff)
Member RFC Production Advisory Team (rpat)
Reviewer General Area Review Team (Gen-ART) (genart)
Reviewer ART Area Review Team (artart)
Reviewer Security Area Directorate (secdir)
Tech Advisor Nominating Committee 2024/2025 (nomcom2024)
Tech Advisor Nominating Committee 2021/2022 (nomcom2021)
Tech Advisor Nominating Committee 2022/2023 (nomcom2022)
Wikijs administrator IETF LLC employees (llc-staff)
YangCatalog Operator YangCatalog Support (ycsupport)

External Resources

Name Value
GitHub Username rjsparks

RFCs (29)

RFC Date Title Cited by
RFC 3087 Apr 2001 Control of Service Context using SIP Request-URI 9 RFCs
RFC 3261 Jul 2002 SIP: Session Initiation Protocol 536 RFCs
RFC 3420 Nov 2002 Internet Media Type message/sipfrag 10 RFCs
RFC 3515 Apr 2003 The Session Initiation Protocol (SIP) Refer Method 50 RFCs
RFC 3665 Jan 2004 Session Initiation Protocol (SIP) Basic Call Flow Examples 9 RFCs
RFC 3666 Jan 2004 Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows 3 RFCs
RFC 3892 Sep 2004 The Session Initiation Protocol (SIP) Referred-By Mechanism 11 RFCs
RFC 4317 Dec 2005 Session Description Protocol (SDP) Offer/Answer Examples 1 RFC
RFC 4320 Jan 2006 Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE Transaction 8 RFCs
RFC 4321 Jan 2006 Problems Identified Associated with the Session Initiation Protocol's (SIP) Non-INVITE Transaction 5 RFCs
RFC 4475 May 2006 Session Initiation Protocol (SIP) Torture Test Messages 17 RFCs
RFC 5057 Nov 2007 Multiple Dialog Usages in the Session Initiation Protocol 9 RFCs
RFC 5118 Feb 2008 Session Initiation Protocol (SIP) Torture Test Messages for Internet Protocol Version 6 (IPv6) 1 RFC
RFC 5359 Oct 2008 Session Initiation Protocol Service Examples 10 RFCs
RFC 5393 Dec 2008 Addressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking Proxies 6 RFCs
RFC 5589 Jun 2009 Session Initiation Protocol (SIP) Call Control - Transfer 8 RFCs
RFC 5657 Sep 2009 Guidance on Interoperation and Implementation Reports for Advancement to Draft Standard 6 RFCs
RFC 5727 Mar 2010 Change Process for the Session Initiation Protocol (SIP) and the Real-time Applications and Infrastructure Area 11 RFCs
RFC 5850 May 2010 A Call Control and Multi-Party Usage Framework for the Session Initiation Protocol (SIP)
RFC 6026 Sep 2010 Correct Transaction Handling for 2xx Responses to Session Initiation Protocol (SIP) INVITE Requests 1 RFC
RFC 6216 Apr 2011 Example Call Flows Using Session Initiation Protocol (SIP) Security Mechanisms
RFC 6778 Oct 2012 Requirements for Archiving IETF Email Lists and for Providing Web-Based Browsing and Searching 2 RFCs
RFC 7017 Aug 2013 IMAP Access to IETF Email List Archives
RFC 7614 Aug 2015 Explicit Subscriptions for the REFER Method 2 RFCs
RFC 7647 Sep 2015 Clarifications for the Use of REFER with RFC 6665 2 RFCs
RFC 7735 Jan 2016 Tracking Reviews of Documents
RFC 7842 Apr 2016 Requirements for Improvements to the IETF Email List Archiving, Web-Based Browsing, and Search Tool
RFC 8217 Aug 2017 Clarifications for When to Use the name-addr Production in SIP Messages 2 RFCs
RFC 9366 Mar 2023 Multiple SIP Reason Header Field Values 1 RFC

Active Internet-Drafts (1)

Expired Internet-Drafts (40)

(Excluding replaced Internet-Drafts.)

Internet-Draft Activity