NANC Call Authentication Trust Anchor (CATA) Working Group PROGRESS REPORT MARCH 8, 2018 Tri-Chairs: Jackie Wohlgemuth, ATIS Beth Choroser, Comcast Rosemary Leist, Sprint

ORIGINAL DIRECTION The North American Numbering Council’s (“NANC”) Call Authentication Trust Anchor Working Group, was originally directed, on December 7, 2017, to perform the following with a deadline of April 7, 2017: Scope: Defining criteria by which a GA should be selected; Apply these criteria in evaluating the suitability of any entities proposing to serve as GA, including ATIS, the Commission, or a working group of the NANC; Recommend, if the Commission is not to serve as the GA, the role that the Commission should play in overseeing the administration of the call authentication system; and Recommend the process by which the PA should be selected, including whether solely by the GA, or by a process including other stakeholders. As well as: A reasonable timeline or set of milestones for adoption and deployment of a SHAKEN/STIR call authentication system, included metrics by which the industry’s progress can be measured; and Incentives or mandates that the Commission can put in place to ensure that these milestones and timelines are met; Any additional steps the Commission needs to take to facilitate deployment of a call authentication system; Any steps the Commission or industry might take to make sure a call authentication system works for all participants in the North American Numbering Plan.

UPDATED DIRECTION The North American Numbering Council’s (“NANC”) Call Authentication Trust Anchor Working Group direction and scope was updated by the Commission on February 22, 2018. The due date was extended one month to May 7, 2018, resulting from the delay in announcement of working group membership. The scope of the working group was updated to accentuate the definition of criteria by which the GA should be selected, and removing the requirement to ‘recommend’ a GA. Updated Scope: Defining criteria by which a GA should be selected; Describe the evaluation process of applying the above-defined criteria Recommend, if the Commission is not to serve as the GA, the role that the Commission should play in overseeing the administration of the call authentication system; and Recommend the process by which the PA should be selected, including whether solely by the GA, or by a process including other stakeholders.

CONFLICT OF INTEREST STATEMENT from FCC (page 1 of 2) One of the Working Group’s several tasks is to recommend the criteria and the process by which a Governance Authority (GA) should be selected, as well as the process for the selection of a Policy Administrator (PA).  If a member of the Working Group (or the organization that member represents) intends to apply to be either the GA or PA, there is a risk of a conflict of interest, or the appearance of such a conflict, between the interests of the Working Group and those of the member.  To avoid such potential conflicts or appearance concerns that could raise issues for the Working Group, its members, or the Commission, members representing organizations that have indicated an interest in serving as the GA may not attend or participate in deliberations on the criteria and process for selecting the GA.  Likewise, members representing organizations that have indicated an interest in serving as the PA may not attend or participate in participate in deliberations on the criteria and process for selecting the PA. Members representing these organizations may participate freely in other topics of discussion within the Working Group. Members representing organizations that have indicated an interest in serving as the GA or PA may present to the group their perspectives on the criteria and process of selection, answer questions about their presentation, and engage in discussion with the group about the process for the duration of their presentation time, as determined by the Working Group.  At the end of their time, those members should leave the meeting for any Working Group deliberation on the covered topics.  

CONFLICT OF INTEREST STATEMENT from FCC (page 2 of 2) These same restrictions apply to representatives of potential GA or PA selectees who are not members of the Working Group.  (These are the same restrictions that apply to any non-WG members who wish to present to the group.) Members representing entities that have indicated an interest in being GA or PA selectees may post documents regarding the criteria and process for selecting the GA or PA, respectively, to the listserv of WG members, or other shared document repositories, but may not further engage regarding those documents on the listserv. To the extent that a Working Group member represents an entity that has not publicly indicated an interest in being a GA or PA selectee but has or might consider such an interest, the member should contact the DFO to discuss the facts and circumstances and what, if anything, the member will need to do to handle the situation.  

LOGISTICS The CATA is meeting for two hours weekly, a standing cadence Thursday morning’s from 9- 11AM (ET), in an effort to meet the aggressive due date of May 7, 2018. The working group has met four times: February 14, February 21, March 1, March 8. The CATA WG has developed a work plan with milestones to help manage progress. During each meeting: Contributions are presented Questions/Answer/Discussions Action items are assigned

PROGRESS Multiple contributions related to all areas the CATA WG has been directed to provide input to the FCC have been received and reviewed by the WG. Matrices have been developed to summarize the contributions in order to assist in reaching consensus on the various elements, and serve as input to the final report. A technical editor and a finish editor have volunteered to prepare the report, with contributions serving as substantive input to the report. The development of the report is underway based on contributions submitted.

STATUS Contributions Task Defining criteria by which a GA should be selected Describe the evaluation process of applying the above-defined criteria (GA) Recommend, if the Commission is not to serve as the GA, the role that the Commission should play in overseeing the administration of the call authentication system Recommend the process by which the PA should be selected, including whether solely by the GA, or by a process including other stakeholders A reasonable timeline or set of milestones for adoption and deployment of a SHAKEN/STIR call authentication system, included metrics by which the industry’s progress can be measured Incentives or mandates that the Commission can put in place to ensure that these milestones and timelines are met Any additional steps the Commission needs to take to facilitate deployment of a call authentication system Any steps the Commission or industry might take to make sure a call authentication system works for all participants in the North American Numbering Plan

NEXT STEPS All contributions were due March 15, 2018, for any area the CATA WG has been directed to provide input to the FCC. Deliberation will begin on all major decision points (see slides 3 and 8). The working draft of the report will be reviewed and continue to be updated as consensus is reached. Discussion items better addressed by other forums and/or at a later date: Should multiple PAs exist in the CATA ecosystem? (IP-NNI) Should the initial deployment include STIR? (IP-NNI) Large corporate entities and proof of possession? (IP-NNI) Communication with Canada regarding US implementation of SHAKEN (TBD) Cost recovery is a recurring topic; while a potential qualification related to GA is to manage costs, there are several factors related to costs (e.g. startup, transactional, participation in Board or Management, etc.) that should be considered. (TBD)

MEMBERSHIP AT&T ATIS CenturyLink Charter Communications, Inc Columbia University Comcast Cox Communications CTIA FCC Google iconectiv Massachusetts DTC Montana PSC NTCA Neustar Peerless Network, Inc. SIP Forum Smithville Communications Somos Sprint TransNexus, Inc. US Telecom Telnyx LLC West Telecom Services, LLC Guest Participation: Verizon, VigilSec

CONTACT INFORMATION Guest participation is welcome in this open and transparent working group. Please contact any one of the Tri-Chairs to ask questions or if interested in attending the conference calls: Jackie Wohlgemuth, ATIS Sherwin Siy, FCC Liaison to the WG jwohlgemuth@atis.org sherwin.siy@fcc.gov Beth Choroser, Comcast Beth_Choroser@Comcast.com Rosemary Leist, Sprint Rosemary.Leist@Sprint.com