ShelCron

VoIP & Telecom

STIR/SHAKEN

STIR/SHAKEN signing and verification paths for attested calling identity on SIP networks.

STIR/SHAKEN helps authenticate calling identity in IP voice networks. We implement signing and verification paths appropriate to your role in the call chain—certificates, SIP Identity handling, and operational procedures—aligned with your carriers and the jurisdictions where you terminate traffic.

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Who it’s for

  • Carriers and voice service providers in STIR/SHAKEN regimes
  • Aggregators needing signing/verification at interconnects
  • Enterprises coordinating attested identity with providers

Problems we address

  • Calls are unsigned or incorrectly attested
  • Certificate and key lifecycle is unclear
  • Verification failures are hard to diagnose in production

Expected outcomes

  • Signing/verification architecture matched to your network role
  • Certificate lifecycle and ops procedures
  • Monitoring for Identity header failures

Capabilities

Concrete engineering capabilities included in a typical engagement for this service.

STIR/SHAKEN architecture advisory

SIP Identity implementation on your stack as scoped

Certificate/key operational procedures

Interconnect testing with carriers

Troubleshooting guides for attestation failures

Technology

Representative technologies used for this service. Final stack depends on your estate.

  • STIR/SHAKEN
  • SIP Identity
  • OpenSIPS/Kamailio modules
  • SBC features
  • PKI/certificates

Architecture

Voice signalling path

Users and carriers meet through SBC, SIP proxy, and media services.

UsersAgentsSBCSIP ProxyMedia ServerCarrier

Deliverables

  • STIR/SHAKEN design notes
  • Configured signing/verification as scoped
  • Certificate ops runbook
  • Test call evidence
  • Monitoring recommendations

Out of scope

  • Acting as your STI-CA
  • Regulatory filings on your behalf

Timeline

Typical timeline

2–6 weeks

Timeline depends on scope, access, and dependencies—not a delivery guarantee.

Process

A clear delivery path from discovery through handover and optional support.

  1. 01

    Discovery

    Goals, constraints, success criteria, and current-state review.

  2. 02

    Architecture

    Target design, interfaces, risks, and delivery sequence.

  3. 03

    Implementation

    Incremental build with visible progress and documented decisions.

  4. 04

    Testing

    Functional checks, failure paths, and acceptance criteria validation.

  5. 05

    Deployment

    Controlled release to staging and production with rollback paths.

  6. 06

    Handover

    Runbooks, access notes, and operator/admin walkthrough.

  7. 07

    Support

    Optional hypercare window or retainer continuity after go-live.

Custom engagement

Pricing depends on architecture, traffic profile, and integration depth. Share your requirements for a scoped quote.

FAQ

We guide the technical integration and certificate installation process. Certificate authority enrollment and legal entity steps remain with your organization and chosen CA/provider.

Ready to build?

Tell us about your environment, constraints, and target outcomes. We’ll recommend a package or a scoped quote.