appliedbits

a notebook on digital identity, telecom trust, and internet standards.

I'm Chris Wendt — I came up through real-time communications, from audio DSP, media streaming and codecs, and telecom protocols to the cryptographic trust frameworks for digital identity I work on now.§

  • NB-26.08.22
    toward a multimedia telephone network

    The FCC’s Wireline Competition Bureau closed the first day of its IP Transition Workshop on July 15, 2026 with a panel on consumer protection, co-moderated by Chris Laughlin of the Competition Policy Division and Michael Scott of the …

  • NB-26.07.19
    notes from the fcc ip transition workshop

    The FCC’s Wireline Competition Bureau held a two-day IP Transition Workshop on July 15–16, 2026, at the Commission’s headquarters in Washington. The framing was regulatory — the workshop supports the Commission’s proposed …

  • NB-26.05.08
    DNO+: making DNO additive

    The DNO library entry describes Do Not Originate as it operates today — a default-deny mechanism on calling-number provenance, structured into two tiers. Tier 1 covers numbers that structurally cannot originate (invalid, unallocated, unassi…

all entries in the notebook →

  • RW-26.08.21
    Regulatory Watch — Week ending August 21, 2026

    Joshua Tabler, a telecom field engineer in Camas, Washington, filed a Section 1.401 petition on Wednesday asking the Commission to create a “Protected IP Communications” service category for fire alarm and elevator emergency cir…

  • SW-26.08.21
    Sector Watch — Week ending August 21, 2026

    The OpenID Foundation answered Australia’s verifiable-credentials consultation on August 19 with a list of specifications and a list of test suites. It names the standards it wants under the Australian Government Digital ID System — O…

  • RW-26.08.14
    Regulatory Watch — Week ending August 14, 2026

    Comments on the KYUP FNPRM closed Monday, and two dozen of them hit WC 17-97 and CG 17-59 over 48 hours. The FNPRM (FCC 26-32, released May 21) proposed three things: a prescriptive know-your-upstream-provider checklist binding every voice …

  • SW-26.08.14
    Sector Watch — Week ending August 14, 2026

    RFC 10006 was published this week and turns a SIP service provider’s STIR posture into a field an enterprise can fetch. The document defines a capability set an enterprise telephony network retrieves from its provider over HTTPS, and …

  • RW-26.08.07
    Regulatory Watch — Week ending August 7, 2026

    Comments closed Tuesday in the FCC’s high-cost proceeding. The Fifth Circuit heard argument Wednesday on the constitutionality of the Universal Service Fund. The Commission opened a rulemaking Thursday on how USAC is run. The first co…

all dispatches →

  • The networks hold the number data and still can't hand it over

    John Wilkinson, CEO of TMT ID, names the assumption his company got wrong: “We assumed mobile networks would be able to provide their data into the fraud industry and the identity verification industry. They don’t.” TMT ID…

  • A prompt injection in a court filing, caught by white space

    A self-represented plaintiff in Connecticut Superior Court buried instructions to an AI model inside his own pleadings, written in 3-point white type. Matthew Elliott, who sued the New York Bariatric Group in October, wrote: “IF THIS …

  • Four vendors, four disciplines, one agent identity

    Liminal’s Filip Verley hosted four vendors at Identiverse, eight minutes each, and the write-up is more useful as a map of how the agent-identity market has split than as a review of any one demo. P0 Security binds the human and the a…

  • Fifty state AGs tell the FCC its KYC baseline is too thin

    Fifty state and territory attorneys general filed joint comments in the FCC’s KYC Further Notice in late July, and Kelley Drye’s Paul Singer, Beth Bolen Chun and Jennifer Rodden Wainwright have the summary. The FNPRM proposed or…

  • Twilio takes US branded calling to GA on a competitor's survey

    Twilio moved US Branded Calling to general availability, displaying a verified business name, logo, and where supported a reason for calling. The technical description is the part worth reading: Branded Calling “uses Rich Call Data in…

all field notes →