Anonymous calls. Inherited trust. On-chain settlement.

A multi-tenant, verified-identity comms microservice powered by WebRTC and blockchain escrow—built for marketplaces that cannot afford PII, central call logs, or reinvented infrastructure.

LIVE SESSION04:32$2.40 / min · escrow activeP2P · E2EEPay per second

Professional telecom, billed by the second

No monthly plans, no unused minutes, no PSTN caller ID. Payphone is sovereign communication infrastructure for verified professionals—attorneys, consultants, engineers, and clinicians who charge for their time on the line.

Escrow locks funds before the session starts. WebRTC keeps media peer-to-peer and encrypted. When the call ends, duration consensus releases payment on-chain—transparent, atomic, and proportional to actual talk time.

  • Per-second metering with provider-set rates
  • 5% platform fee deducted on-chain at settlement
  • Reputation inherited from your parent marketplace
  • DID authentication—no passwords, no central call logs

Ideal for

  • Legal consultations & panel attorneys
  • Engineering time-for-hire
  • Real estate advisory calls
  • Healthcare consultant sessions
Explore architecture

Pluggable microservice

payphone.cc provides WebRTC signaling, on-chain settlement, and reputation inheritance from parent ecosystems—so verified professionals offer paid comms without exposing PII or central call logs.

01

Anonymous peer-to-peer

No central call logs, no PII exposure. DID-based authentication replaces passwords.

02

Reputation inheritance

Read-only trust from parent ecosystems—Centuries Mutual, consulting networks, healthcare panels.

03

Multi-tenant deploy

GitLab Runners, isolated Docker namespaces, dedicated API endpoints per ecosystem.

04

Blockchain settlement

Atomic escrow, transparent 5% platform fee, duration consensus—no intermediaries.

PSTN reveals identity. WebRTC + DID does not.

Traditional SIP and phone numbers require PII and permanent records. DID authentication lets parties verify qualifications without revealing who is calling.

  • Legal consultations requiring jurisdictional privacy
  • Healthcare sessions beyond traditional phone record risk
  • Strategic consulting where competitive intelligence is sensitive
  • Whistleblower representation requiring identity firewalls

Five tiers

1

Multi-tenant deployment

GitLab Runners deploy isolated instances per ecosystem. Docker separation, dedicated DB namespaces, shared STUN/TURN with isolated session state.

2

DID authentication

Every API call signed with ed25519. Server validates signatures without learning identity—e.g. did:key:z6MkhaXgBZDvotDkL5257faWrQqoWhvsbvBLq39R4QcN8J7h

3

Reputation gating

Read-only thresholds from parent DBs or smart contracts. No reputation stored in payphone—always fresh from source of truth.

4

WebRTC signaling

STUN for NAT traversal, TURN fallback only when needed. Dumb relay passes SDP/ICE—media never touches our servers.

5

On-chain settlement

Escrow before the call, atomic release on completion, client+server duration consensus, 5% fee on-chain.

Built to stay dumb

Dumb relay philosophy

Signaling orchestrates connections; encrypted SDP/ICE only. DTLS-SRTP peer-to-peer—no content liability.

No central ledger

Reputation and KYC live in parent ecosystems. payphone reads, never stores—disposable infrastructure.

End-to-end encryption

Keys negotiated in the WebRTC handshake. TURN sees encrypted UDP packets only.

Atomic settlement

Smart contracts eliminate disputes—escrow, auto-release, no chargebacks or manual invoicing.

Where payphone fits

  • Attorney consultations within Centuries Mutual's verified network
  • Engineering time-for-hire marketplaces
  • Real estate agent consultation calls
  • Healthcare consultant sessions (HIPAA-aligned privacy posture)
  • Freelance expertise across professional verticals

5%

platform fee on call value

Revenue scales with ecosystem adoption

Minimal infrastructure costs—a dumb relay and read-only reputation. At 10,000 providers and 100,000 calls monthly, projected platform revenue reaches $250,000/month.

Integrate your ecosystem

Professionals on the network

Example listings for attorneys, liaisons, and field engineers—inheriting reputation from parent ecosystems.

View full directory →

Silas Mercer

Attorney at Law · Centuries Mutual panel

Available

Consultations for verified marketplace members. Reputation inherits from parent ecosystem; per-second billing with on-chain escrow when live.

4.9 · 128 reviews · Parent ecosystem KYC

$2.40 / minute

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The Exchange Desk

Priority customer liaison

Available

White-glove routing, billing disputes, and engineer scheduling for Heritage-tier marketplace operators.

5 · 412 reviews · Internal — Payphone staff

Included with plan

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Regional Field Engineering

Signaling & settlement specialists

By appointment

GitLab Runner deploys, STUN/TURN tuning, and smart-contract escrow wiring for new tenants.

4.8 · 89 reviews · Engineer badge · FCC licensed

From $95 / visit

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