Public record — about

This is a selective record of professional work that happens to be in public — standards-body roles, regulatory venues where the work has been presented, press coverage of the frameworks I’ve been involved in developing, and talks where decks or recordings are publicly accessible. Maintained as a reference rather than a clippings file: the focus is documenting the work, not promoting it. Most of the substantive output lives in the library and the notebook; this page just makes the surrounding public record easier to find.

Standards roles

Co-chair, ATIS / SIP Forum IP-NNI Joint Task Force (since January 2014). Topic page →

Co-chair, US STI-GA Technical Committee.

Co-chair, IETF vCon Working Group (with Brian Rosen).

Co-chair, FCC Robocall Strike Force Authentication Workgroup (with Martin Dolly, AT&T; 2016-2017). Topic page →

Participant and editor of all reports, NANC Call Authentication Trust Anchor (CATA) Working Group (2018-2024). Topic page →

Editor, ITU-T SG2 — E.RAA4Q.TSCA.

Editor, ITU-T SG11 — Q.VoIP-CLI (proposed work item); contributor to Q.TSCA.

Board Director, SIP Forum.

Participant, GSMA RCS Group (RCSG).

Co-chair (with Guy Pearson, Bank of America), CFCA Trust and Transparency Working Group (TTWG).

Authored standards

IETF RFC 8224, Authenticated Identity Management in the Session Initiation Protocol. Co-author. February 2018.

IETF RFC 8225, PASSporT: Personal Assertion Token. Co-author. February 2018.

IETF RFC 8588, Personal Assertion Token (PaSSporT) Extension for Signature-based Handling of Asserted information using toKENs (SHAKEN). Co-author. May 2019.

IETF RFC 9027, Assertion Values for Resource Priority Header and SIP Priority Header Claims in Support of Emergency Services Networks. Co-author. June 2021.

IETF RFC 9410, Handling of Identity Header Errors for Secure Telephone Identity Revisited (STIR). Sole author. July 2023.

IETF RFC 9447, ACME Challenges Using an Authority Token. Co-author. September 2023.

IETF RFC 9448, TNAuthList Profile of Automated Certificate Management Environment (ACME) Authority Token. First author. September 2023.

IETF RFC 9475, Messaging Use Cases and Extensions for Secure Telephone Identity Revisited (STIR). Co-author with Jon Peterson. December 2023.

IETF RFC 9795, Personal Assertion Token (PASSporT) Extension for Rich Call Data. Co-author. July 2025.

IETF RFC 9796, SIP Call-Info Header Field Parameter for Rich Call Data. Co-author. July 2025.

Active drafts and ongoing standards work are catalogued in the STIR/SHAKEN topic and the VESPER topic. The full authoritative record of RFCs, active drafts, expired drafts, and working-group roles is on the IETF Datatracker →.

FCC events and proceedings

FCC Robocall Strike Force, first meeting — August 19, 2016, Washington, DC. Authentication Workgroup co-chair (with Martin Dolly).

FCC Robocall Strike Force, second meeting — October 26, 2016, Washington, DC. Authentication Workgroup co-chair; Initial Report endorsing STIR/SHAKEN delivered.

FCC SHAKEN/STIR Robocall Summit — July 11, 2019, Washington, DC. Panel 1 (Major Voice Service Provider Progress). Quoted by USA TODAY: “there isn’t just one silver bullet to solve this problem.”

NANC CATA Working Group reports (2018-2024) — participant and editor across all CATA reports through the working group’s existence. The reports remain authoritative in FCC rulemaking; NANC was not rechartered after June 24, 2025.

ITU-T

ITU-T SG17 Workshop on Digital Identity — Geneva, March 30-31, 2026. Session 4 presentation: Lessons Learnt from Certificate Governance.

ITU-T SG2 — editor, E.RAA4Q.TSCA (in development).

ITU-T SG11 — editor, Q.VoIP-CLI (proposed work item, in development); contributor to Q.TSCA (in development).

IETF presentations

IETF STIR Interim Meeting — April 9, 2026 (virtual). Presented draft-wendt-stir-vesper-07. Session materials →

(IETF working group meeting attendance and presentations across STIR, vCon, and ACME going back to 2014 are recorded in the IETF Datatracker →.)

Press coverage

USA TODAY — Why robocalls will be ‘shaken’ and ‘stirred’ with new mandatory caller verification (Madeline Purdue, July 11, 2019). Coverage of the FCC SHAKEN/STIR Summit; quoted as co-author of the standard. Article →

USA TODAY — Enraged by endless robocalls? Help is on the way (Kevin McCoy, syndicated November 15, 2018). Documents the September 2015 FCC workshop where Jon Peterson and I recommended combining STIR with SHAKEN; quoted on the convergence moment. Archived at the Chicago Sun-Times. Article →

Industry milestones

First authenticated caller-ID with Rich Call Data — November 2020. First production demonstration of a SHAKEN call signed with the RCD PASSporT extension across an interoperable multi-vendor path. Joint announcement: Comcast, Everbridge, NetNumber, Numeracle, Twilio.

Talks where decks or recordings are public

NICC UK Open Forum — November 15, 2022. US STIR/SHAKEN Overview. Slides (PDF) →

ITU Workshop on Securing Telephone Networks — Geneva, November 17, 2025. Co-located with the ITU-T Study Group 11 meeting. Panel discussion on combating fraudulent communications using digital certificates. Workshop page →

ITU Workshop on Trustable and Interoperable Digital Identities for Human and Agentic AI — Geneva, March 30-31, 2026. Hosted by ITU-T SG17. Lessons Learnt from Certificate Governance. Workshop page →

(Older talk decks from ATIS, SIP Forum, IETF, and various industry events exist in working archives; representative materials may be added here over time.)

Notes

The list is selective rather than exhaustive. Standards-body participation produces a long tail of contribution documents, working-group meeting attendance records, and minor mentions that aren’t catalogued individually here; the body of work is better understood by reading the library than by counting venue appearances.

Substantive entries get added when a recording, deck, or article is publicly accessible and adds something to the documentary record. Things omitted include: brief quotes that don’t add substance beyond what’s already in the record, social-media engagement, and venues where I attended without a substantive speaking or editorial role.

Affiliations referenced above span the work history: Comcast (through 2022) and Somos (2022-present). The standards work is maintained continuously across that transition; affiliations on specific RFCs and standards documents reflect employer at the time of authorship.